Dedication: 3/15/05

trans: across (as prefix: tra-, tran-, trans-, tres-)

cistron, tramontane, trance, transact, transcend, transcribe, transect, transept, transfer, transfigure, transgress, trajectory, translate, transliterate, translucent, transmarine, transmigrate, transmit, transmute, transoid, transom, transparent, tran(s)ship, transpire, transplant, transpontine, transport, transubstantiation, transume, Transvaal, transverse, traverse, travesty, trespass, trestle

N.B. transom, Trastavere. For additional examples consult the reverse index.
trapetum: oilpress

trapiche

tremo: shake in fear

delirium tremens, DT, temblor, tremblant, tremble, tremblement, trembler, tremblingly, tremblor, Tremella, tremellose, tremendous, tremendously, tremendousness, tremendum, tremolando, tremolant, tremolist, tremolo, tremor, tremorless, tremulant, tremulation, tremulous, tremulously, tremulousness, untrembling

trepidus: fearful

intrepid, intrepidity, intrepidly, trepidation, trepidatory, trepidity

tres: see ter
Treveri: a tribe of Gauls

New Trier, Trier
tri-: see ter
tribunus, tribuo: see tribus
tribus: tribe; tribuo: apportion; tribunus: tribune

attributable, attribute, attribution, attributive, attributively, contribual, contribuent, contributable, contribute, contribution, contributional, contributive, contributively, contributor, contributorial, contributorship, contributory, detribalization, distributable, distributary, distribute, distributee, distribution, distributional, distributism, distributival, distributive, distributively, distributiveness, distributivity, distributor, distributorship, distributress, frequency distribution, intertribal, maldistribution, noncontributory, redistribute, redistribution, redistributive, retribution, retributionism, retributionist, retributive, retributively, tribal, tribalism, tribalist, tribalistic, tribalize, tribe, tribeless, tribeship, tribesman, tribual, tribunal, tribunate, tribune, tribunitian, tributary, tribute, tributor, undistributed

OLD says perhaps tribus is derived from tres.
tricae: complications, trifles (cf. torqueo)

disintricate, extricable, extricate, extrication, inextricability, inextricable, inextricably, intricacy, intricate, intricately, intrigue, intriguer, intriguing, intriguingly

triones: ploughing oxen

Septentrionales

tristis: sad

tristful

trituro: see tero
triumphus: triumph

overtrump, Triomphe (Fr), triumph, triumphal, triumphalism, triumphalist, triumphally, triumphant, triumphantly, trump

AHD derives trump from triumph; OED says only some meanings may derive from triumphus.
-trix: female who performs an action

benefactrix etc.

Troia: Troy

Troadic, Trojan, Troy, troy

trua: ladle

trowel
tructa: trout (not in OLD)

trout

trudo, trusum: thrust, force

abstruse, abstrusity, contrude, detrude, detrusion, detrusor, extrudable, extrudability, extrude, extruder, extrusion, extrusive, extrusory, intrude, intruder, intruse, intrusion, intrusionist, intrusive, intrusively, intrusiveness, nonintrusion, nonintrusive, nonintrusively, obtrude, obtruder, obtrusion, obtrusive, obtrusively, obtrusiveness, protrude, protrudent, protruding, protrusible, protrusile, protrusion, protrusive, protrusively, pultrusion, retrusion, trusion, unobtrusive, unobtrusively

truncus: trunk

detruncate, entrench, entrenchment, intrench, intrenchment, meditrunk, obtruncate, retrench, retrenchment, trench, trenchancy, trenchant, trenchantly, trench coat, trencher, trencherman, trench fever, trenchless, truncal, truncate, truncation, truncheon, truncus, trunk, trunnion

trux: savage

truculence, truculency, truculent, truculently

tu: you (sg.)

et tu Brute, fiat voluntas tua, morituri te salutamus, sit tibi terra levis, tuism, tu quoque

tuber: lump

protuberance, protuberant, subtuberant, truffle, tuber, tubercle, tubercular, tuberculate, tuberculation, tubercule, tuberculiform, tuberculin, tuberculine, tuberculoma, tuberculosis, tuberculous, tuberculum, tuberiferous, tuberiform, tuberose, tuberosity, tuberous, tuberousness

LS derives from tumeo; OLD says perhaps.
tubus: pipe; tuba: trumpet

extubation, intubate, intubation, multitubular, phototube, test tube, tuba, tubage, tubal, tubate, tube, tubectomy, tube-culture, tube-feeding, tubicolous, tubicorn, tubicule, tubifacient, tubifer, tubiferous, tubiflorous, tubiform, tubilingual, tubinarial, tubing, tubiparous, tubipore, Tubism, tubivalve, tuboplasty, tubular, tubularian, tubulary, tubulate, tubulation, tubule, tubulicole, tubulidentate, tubuliferous, tubulifloral, tubuliflorous, tubuliform, tubulipore, tubulocyst, tubulose, tubulous, tubulus, vacuum tube, water tube, working tube

tueor, tuitum: guard; tutus: safe; intueor: gaze at

counterintuitive, intuit, intuitable, intuition, intutional, intuitionalism, intuitionalist, intuitionism, intuitionist, intuitive, intuitively, intuitiveness, intuitivism, intuitivist, nonintuitive, tuition, tutelage, tutelar, tutelary, tutor, tutorage, tutorial, tutorless, tutorship, untutored

tumeo: swell; tumulus: mound; tumultus: disturbance

contumacious, contumaciously, contumacy, contumelious, contumeliously, contumely, detumescence, detumescent, extumescence, intumesce, intumescence, intumescent, tumefacient, tumefaction, tumefy, tumesce, tumescence, tumescent, tumid, tumidity, tumidly, tumor, tumorigenetic, tumorigenic, tumorous, tumular, tumult, tumultuarily, tumultuary, tumultuous, tumultuously, tumulus

N.B. OED drives tumult from tumeo; OLD says tumultus and tumeo are obscurely related. AHD derives tumult from tumultus.

tundo, tu(n)sum: strike, beat, pulverize

contuse, contusion, obtund, obtundent, obtuse, obtusely, obtuseness, obtusity, obtusion, pertuse, toil, toiler, toilful, toilsome

See pierce in OED.
tunica: tunic

tunic, tunica, Tunicata, tunicate, tunicle

turba: crowd; turbo (1): disturb; turbidus: confused; perturbo: disturb

bioturbation, contrivance, contrive, contriver, cryoturbation, disturb, disturbance, disturbant, disturber, disturbing, disturbingly, imperturbability, imperturbable, imperturbably, imperturbation, indisturbable, indisturbance, perturb, perturbability, perturbable, perturbate, perturbation, perturbational, perturbative, perturber, troubadour, trouble, troublemaker, troubleshooter, troublesome, troublesomely, troublesomeness, troublous, troublously, turba, turbellarian, turbid, turbidimeter, turbidite, tubidity, turbinado, turbinal, turbinate, turbine, turbinectomy, turbiniform, turbo, turbo-charger, turbo-compressor, turbofan, turbo-generator, Turbojet, turbopause, turboprop, turbosphere, turbostratic, turbulence, turbulency, turbulent, turbulently, undisturbed, unperturbed, untroubled, water turbine

turdus: thrush

turdiform, turdine

turgeo: to swell

turgescence, turgescency, turgescent, turgid, turgidity, turgidly, turgometer, turgor

turpis: vile, evil

turpitude, turpitudinous

turris: tower: see turriV
turtur: turtle

turtle

Tuscus: Etruscan

Etruria, Etrurian, Etruscan, Etruscology, Tuscan, Tuscany

tussis: cough (cf. tundo)

antitussive, contratussin, intusscept, intussception, pertussal, pertussis, tussal, tussis, tussive

tutus (safe): see tueor
Tyrus: Tyre

Tyre, Tyrian

U

uber: breast, nipple, abundance

exuberance, exuberant, exuberantly, exuberate

ubi: where

ubication, ubiety, ubiquity, ubiquitous

udus: wet

udometer

ulcus (gen. ulceris): sore

exulceration, ulcer, ulcerate, ulceration, ulcerative, ulcerous

Ulixes: Ulysses (OdusseuV)

Ulyssean, Ulysses

ullus: any; nullus: none

annul, annulment, disannul, null, nullification, nullifidian, nullifier, nullify, nullipara, nulliparous, nulliplex, nullipore, nullity, nulliverse, nullness, nullo, null point, null set, null space

LS says diminutive of unus; OLD distinguishes the two words.
ulmus: elm

elm, elmy, ulmaceous, ulmic, ulmin(e)

ulna: elbow

ulna, ulnar

ultra: beyond; ultro: besides; ulterior: farther; ulterius: farther away; ultimus: farthest

antepenult, antepenultimate, outrage, outrageous, outrageously, outrageousness, ourager, outre, penult, penultima, penultimate, ult., ulterior, ulteriorly, ultima, Ultima Thule, ultimate, ultimately, ultimation, ultimatum, ultimo, ultimogeniture, ultisol, ultra, ultrabasic, ultracautious, ultracentrifuge, ultracold, ultraconservative, ultracritical, ultradian, ultrafashionable, ultrafiche, ulrafidian, ultrafiltration, ultra-high, ultraism, ultraist, ultraliberal, ultralight, ultramafic, ultramarine, ultramicroscope, ultramicrotome, ultramodern, ultramontane, ultramontanism, ultramontanist, ultramundane, ultranationalism, ultranationalist, ultranationalistic, ultrareactionary, ultrarevolutionary, ultrasecure, ultrasetaceous, ultrashort, ultrasonic, ultrasonography, ultrasound, ultrastable, ultrastructure, ultrathin, ultraviolet, ultravirus, ulroneous

ululo (1): howl

ululant, ululate, ululation

umbo: boss of a shield, protuberance; umbilicus: navel (cf. omfaloV)

dorsoumbonal, umbilical, umbilical cord, umbilically, umbilicate, umbilication, umbilicus, umbo, umbonal, umbonate

umbra: shadow

adumbrate, adumbration, exumbrella, inumbrate, penumbra, penumbral, penumbrous, somber, somberly, somberness, sombra, sombrero, sombrous, umbel, umbella, umbellate, umbellifer, umbelliferous, umber, umbra, umbraculiferous, umbraculiform, umbrage, umbrageous, umbrageously, umbral, umbre, umbrella, umbrelliform, umbriferous, umbrose, umbrous

Umbria: Umbria

Osco-Umbrian, Umbria, Umbrian

umeo: see humeo
umerus: shoulder, upper arm

humeral, humerus, posthumeral, superhumeral

uncia: twelfth-part (from unus)

inch, inchmeal, inchworm, microinch, one-inch, ounce, oz., quincuncial, quincunx, uncia, uncial, water-inch

uncus: hook

aduncate, aduncity, aduncous, biuncinate, unciform, uncinate, uncinus, uncus
unda: wave

abound, abundance, abundant, abundantly, circumundulate, circumundulation, exundant, inundant, inundatal, inundate, inundation, irredundant, ondogram, ondograph, ondometer, overabound, overabundance, overabundant, redound, redundancy, redundant, superabound, superabundance, superabundant, superabundantly, surround, surrounder, surrounding, surroundings, surround sound, undiliform, undine, undose, undulant, undulant fever, undular, undulate, undulation, undulative, undulator, undulatory

unguis: fingernail; ungula: hoof

multungulate, solidungulate, solidungulous, subungual, ungual, unguiculate, unguiferate, ungula, ungulate, unguiligrade

unguo, unctum: smear with oil

anoint, anointment, axunge, disanoint, inunct, inunction, ointment, unction, unctuosity, unctuous, unctuously, unguent

unus: one; universus: all

antiunion, atone, atonement, coadunate, co-unite, co-universal, craft union, disunify, disunion, disunionist, disunite, disunity, e pluribus unum, labor union, microunit, nonunanimous, nonuniformly, nonunion, numero uno, onion, onion dome, onionskin, oniony, Podunk U, probit, reunification, reunify, reunion, reunite, sens unique (Fr), student union, subunit, thermal -unit, trade union, triune, triunity, unanimism, unanimity, unanimous, unanimously, unary, unate, una voce, undecagon, uniate, unicameral, unicellular, unicity, uniclinal, unicorn, unicursal, unicycle, unicyclist, unidentate, unidimensional, unidirectional, unifacial, unifiable, unification, unifier, unifilar, uniflorous, unifoliate, uniform, uniformist, uniformitarian, uniformity, uniformless, uniformly, unify, unigeniture, unijunction, unilabiate, unilateral, unilateralism, unilateralist, unilateralization, unilaterally, unilineal, unilingual, uniliteral, unilocular, unilocularly, unimer, unimodal, unimodular, unimolecular, unineme, uninominl, uninuclear, unio, uniocular, union, unionism, unionist, unionistic, unionization, unionize, union shop, unionwide, uniovular, unipara, uniparental, uniparous, unipartite, uniped, unipersonal, uniplanar, unipod, unipolar, unipotent, unique, uniquely, uniqueness, unireme, uniselector, uniserial, uniseriate, unisex, unisexual, unisexuality, unison, unisonal, unisonant, unisonous, unit, unitable, unital, unitard, unitarian, unitarianism, unitary, unite, unitedly, United Nations, unitedness, United States, uniter, uniterm, unition, unitive, unitively, unitization, unitize, unit rule, unity, univalence, univalent, univalve, univariate, universal, universalism, universalist, universalistic, universality, universalizable, universalization, universalize, universally, universal time, universe, university, univocal, univocalic, univocality, univocally, ununited, USA, (varsity), vertical union, wall unit, yellow union

See ullus. See atone in OED.
urbs: city

ab urbe condita (AUC), burb(s), conurbation, deurbanization, deurbanize, exurb, exurban, exurbia, hyperurbanism, interurban, inurbane, inurbanely, inurbanity, nonurban, subtopia, suburb, suburban, suburbanite, suburbia, suburbicarian, suburbicary, unurbane, urban, urbane, urbanely, urbanism, urbanist, urbanistic, urbanite, urbanity, urbanization, urbanize, urbanology, urbic, urbicide, urbiculture, urbi et orbi, yuppy

urceus: pitcher

urceiform, urceolate, urceole, urceus

urgeo: press upon, push

sex urge, unurged, urge, urgence, urgency, urgent, urgently, urger

urina: urine (cf. ouron)

uric, urinate, urination, urine, uriniferous, uriniparous, urinogenital, urinogenitary, urinologist, urinology, urinometer, urinoscopist, urinoscopy, urinous

urna: urn

inurn, urn

LS and OED derive from uro; OLD does not.
uro, ustum: burn

adust, adustiosis, combust, combustibility, combustible, combustion, combustive, incombustibility, incombustible, noncombustible, urtica, urticaceous, urtical, urticant, urticaria, urticarial, urticarious, urticate, urtication, urticulate, urticose, ustilago, ustion, ustulate, ustulation

ursa: (female) bear; ursus: (male) bear

ursa, ursal, Ursa Major, Ursa Minor, ursicidal, ursicide, ursid, ursiform, ursine, Ursula

urticula (nettle): see uro

-urus: act of

primogeniture etc. (= Eng. -ure)
usus (use): see utor
ut: as, when, that, to

gamut, ut, uti possedetis, ut supra

uter: which of two; neuter: neither; uterque: both; utrum: whether

antineutrino, electroneutral, neutral, neutralism, neutralist, neutrality, neutralization, neutralize, neutralizer, neutrally, neuter, neutercane, neutrino, neutrodyne, neutron, neutronic, photoneutron, thermoneutral, utraquism, utraquist, value-neutral

uter: bag

utricle, utricular, utriculate, utriculitis, utriculoplasty, utriculus
uterus: belly, womb

intrauterine, postuterine, transuterine, uterine, uteritis, utero-gestation, uterotome, uterovaginal, uterovesical, uterus

LS says same root as uter (bag); OLD dissents.
utor, usum: use; usitatus: usual; usus: use; utilis: useful

abusable, abusage, abuse, abuser, abusive, abusively, disabusal, disabuse, disuse, disutility, disutilize, ill-usage, ill-used, inutile, inutility, misusage, misuse, multi-use, multi-user, nonreusable, nonusage, nonuse, nonuser, nonutility, overabuse, overuse, perusable, perusal, peruse, peruser, preutilized, reusable, reuse, self-abuse, SUV, underuse, underutilize, unusable, unused, unuseful, unusual, unusually, unusualness, unutilized, usability, usable, usage, usance, use, useful, usefully, usefulness, useless, uselessly, uselessness, user, user-defined, user-friendly, user-interface, user-oriented, usual, usually, usuary, usucapient, usucapion, usucapt, usucaption, usucaptive, usufruct, usufructuary, usurer, usurious, usuriously, usurp, usurpation, usurpative, usurpatory, usurper, usurping, usurpress, usury, utensil, utile, utilitarian, utilitarianism, utilitarianist, utilitarianize, utility, utility curve, utility function, utilityman, utility program, utility room, utilizable, utilization, utilize, utilizer, word-usage

uva: grape

pyruvate, pyruvic, uva, uvea, uveal, uveitis, uvula, uvular, uvularia, uvulatome, uvulatomy, uvulitis, uvulotome, uvulotomy

uxor: wife

uxorial, uxoricide, uxorilocal, uxorious, uxoriously, uxoriousness

V

vacca: cow

unvaccinated, vaccary, vaccicide, vaccimulgence, vaccinal, vaccinate, vaccination, vaccinator, vaccine, vaccinia, vaccinifer, vacciniform, vaccinization, vaccinophobia, vaquero (Sp)
vacillo (1): totter

vacillancy, vacillant, vacillate, vacillating, vacillation, vacillator, vacillatory

vaco (1): be empty; vacuus: empty

avoid, avoidable, avoidance, avoider, devoid, evacuate, evacuation, evacuative, evacuator, evacuee, in vacuo, medevac, sedevacantist, tax avoidance, unavoidable, unavoidably, vacancy, vacant, vacantly, vacate, vacation, vacationist, vacationland, vacatur, vacky, vacuity, vacuolation, vacuole, vacuome, vacuometer, vacuous, vacuously, vacuum, vacuum cleaner, vacuum pump, vacuum tube, void, voidable, voidage, voidance, voided, voidee, voidness

vado, vadere: go; vadum: shoal; evado: escape

evadable, evade, evader, evasion, evasive, evasively, invadable, invade, invader, invasion, invasive, invasively, invasiveness, pervade, pervader, pervadingly, pervasion, pervasive, pervasively, pervasiveness, quo vadis, tax evasion, vade mecum, vadose

Wade is cognate to vadum.
vae: woe

vae victis

vagina: sheath

evaginate, evagination, infravaginal, intravaginal, invaginal, invaginate, invagination, invaginator, pervaginal, supravaginal, uterovaginal, vagina, vaginal, vaginalitis, vaginally, vaginant, vaginate, vaginismus, vaginitis, vaginoscope, vaginovesical, vaginula, vanilla, vanillery, vanillism, vulvovaginal

vagio: distressful cry

vagitus
vagus: unsettled; vagor (1): wander

astray, circumvagrant, divagate, divagation, extravagance, extravagancy, extravagant, extravagantly, extravaganza, extravagate, extravagation, fluctivagous, gyrovague, noctivagant, noctivagous, omnivagant, pervagate, pervagation, solivagant, stray, strayaway, strayline, strayling, vag, vagabond, vagabondage, vagabondish, vagabondism, vagabondize, vagal, vagarious, vagary, vagile, vagility, vagotomy, vagotonia, vagrancy, vagrant, vagrantism, vagrantly, vague, vaguely, vagueness, vagus, vasovagal

N.B. Stray is formed from extra + vagus.

valeo: be well, be strong; validus: strong

ad valorem, ambivalence, ambivalent, ambivalently, avail, availability, available, availing, availingly, bio-availability,bivalence, bivalent, cash-value, convalesce, convalescence, convalescency, convalescent, convalescently, countervail, countervalue, covalence, covalency, covalent, covalently, devalorization, devalorize, devaluate, devaluation, devalue, disvaluable, disvalue, divalence, divalent, eigenvalue, equivalence, equivalency, equivalent, equivalently, evaluate, evaluation, evaluative, evaluator, face value, heptavalent, hexavalent, invalid, invalidate, invalidation, invalidator, invalidism, invalidity, invalidly, invaluable, invaluably, monovalent, multivalence, multivalent, nanoequivalent, nonevaluative, nonvalent, nonvalid, octavalent, omniprevalent, overvalue, pentavalent, place value, plurivalent, plurivalued, polyvalent, prevail, prevailing, prevalence, prevalent, quadrivalence, quadrivalency, quadrivalent, quantivalence, quinquevalence, quinquevalency, quinquevalent, quinquivalent, reevaluate, revalorization, revaluation, revalue, single-valued, tervalence, tervalent, tetravalent, transvaluation, transvalue, trivalent, unavailability, unavailable, unavailing, undervaluation, undervalue, univalence, univalent, unprevailing, unvalued, upvaluation, vale (Roman greeting), valediction, valedictorian, valedictory, valence, valency, Valentine, valedtudinarian, valetudinarianism, valetudinary, valiance, valiancy, valiant, valiantly, valid, validate, validation, validator, validity, validly, valor, valorization, valorize, valorous, valorously, valpack, valuable, valuableness, valuably, valuation, valuative, valuator, value, valued, value-free, valueless, value-neutral, valuer, valuta

Valerius: Valerius

valerian, valerianate

valgus: bandy-legged

valgus
valles: valley

TVA, vail (lower), valance, vale, vallecula, vallecular, valley, Valley Girl, valleyspeak
vallum: rampart; intervallum: gap

circumvallate, circumvallation, contravallation, interval, multivallate, obvallate, unwalled, vallar, vallate, vallation, vallum, wall, wall arcade, wallbanger, wallbar, wall bed, wallboard, walldormer, wall engine, wallface, wallflower, wall front, wallgarden, wall-lining, wall map, wallpaint, wallpaper, wallphone, wallplate, wallpost, wallprint, wallspace, wallspan, wallstone, Wall Street, walltile, walltower, wall-to-wall, wall unit, wallvase, wallwork, waterwall

valvae: doubledoor of a temple (cognate: volvo)

avalvular, bivalve, bivalvore, equivalve, multivalve, plurivalved, pseudovalve, quadrivave, safety valve, shift valve, sun valve, tail valve, trivalve, tubivalve, univalve, valvar, valvate, valve, valveless, valvifer, valvotomy, valvula, valvular, valvule, valvulitis, valvulotomy