Dedication: 3/15/05

tendo, tensum or tentum: stretch; attendo: listen to; contendo: struggle; intendo: aim; ostendo: show (cf. teinw)

ASCII, attend, attendance, attendant, attendee, attender, attention, attentive, attentively, attently, bartender, circumtension, coextend, coextensive, contend, contender, contention, contentional, contentious, contentiously, contentiousness, counterextension, countertendency, detend, detension, detent, disintensify, distend, distensibility, distensible, distensile, distension, distent, distention, double standard, entente, ententophil, extend, extended, extender, extendibility, extendible, extensibility, extensible, extension, extensional, extensionality, extensionless, extensity, extensive, extensively, extensometer, extensor, extent, gold standard, high-tension, hyperextend, hyperextension, hypertension, inattention, inattentive, inattentively, inattentiveness, inextensible, inostensible, intend, intendance, intendancy, intendant, intendment, intense, intensely, intenseness, intensification, intensifier, intensify, intension, intensity, intensive, intensively, intent, intention, intentional, intentionalism, intentionalist, intentionality, intentionally, intentive, intently, intentness, legal tender, nolo contendere, nonattendance, nonstandard, normotensive, ostensibility, ostensible, ostensibly, ostension, ostensive, ostensory, ostentation, ostentatious, ostentatiously, ostentatiousness, overextended, portend, portent, portentous, portentiously, posttensioning, pretence, pretend, pretender, pretense, pretension, pretentious, pretentiously, pretentiousness, protension, protensity, protensive, standard, standard-bearer, standard deviation, standardization, standardized, stanine, substandard, subtend, subtense, superintend, superintendence, superintendency, superintendent, tend, tendance, tendency, tendential, tendentious, tendentiously, tender (vb: offer), tenderer, tendinitis, tendinous, tendo, tendon, tendril, tendu, tenotomy, tense (tight), tensegrity, tensely, tenseness, tensible, tensile, tensimeter, tensiometer, tension, tensional, tensioner, tensity, tensive, tensometer, tensor, tent, tentage, tentbed, tentdoor, tenter, tenterhook, tenting, tentless, tentmaker, tentorial, tentorium, tentpeg, tent town, thermotensile, thermotension, unattended, uncontentious, uncontentiously, unextended, unintended, unintentional, unintentionally, unostentatious, unostentatiously, unpretending, unpretentious, unpretentiously, well-intentioned

ODEE, OED seem to support derivation of italicized words from tendo; W3 not.

tenebrae: shadows

obtenebrate, obtenebration, tenebrescence, Tenebrae, tenebrific, tenebrionid, tenebrious, tenebrism, tenebrity, tenebrose, tenebrosity, tenebroso, tenebrous