Dedication: 3/15/05

dumus: bramble

dumetose, dumose

duo: two (duo); dubito: doubt, hesitate; dubius: doubtful; duplex: double

a deux (Fr), conduplicant, conduplicate, conduplication, deuce, deucedly, double, double agent, double-barreled, double-bogey, double-breasted, double-check, double cross, double date, double-dealing, double-density, double entendre (Fr), double entente (Fr), double meaning, doubleness, double-park, double play, double-quick, doubler, doublespeak, double standard, double star, doublet, double team, doubletone, doubloon, doublure, doubly, doubt, doubtable, doubter, doubtful, doubtfully, doubtfulness, doubtingly, doubtless, doubtlessly, dozen, dozener, dual, dualin, dualism, dualist, dualistic, duality, dualization, dualize, dually, dual-purpose, duant, dubiety, dubiosity, dubious, dubiously, dubiousness, dubitable, dubitant, dubitation, dubitative, dubitatively, dublet, duet, duettino, duettist, duetto, duo, duocameral, duodecennial, duocentenary, duodecade, duodecennial, duodecentennial, duodecimal, duodecimary, duodecimo, duodecuple, duodecyl, duodenal, duodenary, duodenate, duodene, duodenitis, duodenectomy, duodenum, duodrama, duoglot, duoliteral, duologue, duomachy, duopedal, duopoly, duopsony, duosecant, duotone, duotype, duplation, duple, duplet, duplex, duplexer, duplicability, duplicable, duplicand, duplicate, duplicating, duplication, duplicative, duplicator, duplicature, duplicidentate, duplicipennate, duplicitous, duplicity, duopoly, duply, duumvir, duumviral, duumvirate, half-dozen, indubitable, indubitably, indubitation, indubitative, misdoubt, pasodoble (Sp), redouble, reduplicate, redupication, reduplicative, sine dubio, undoubled, undoubted, undoubtedly

For duel see bellum.

Italicized words are from dubito. OLD derives dubito from only duo, not duo + habeo.
durus: hard

dour, dourly, dourness, durability, durable, durably, dura mater, duraine, dural, duramen, durance, durant, duration, durationless, durative, duress, duretto, Durex, duricrust, during, durum, endurability, endurable, endurably, endurance, endurant, endure, enduring, enduringly, enduringmess, enduro, extradural, indurate, induration, nondurable, obduracy, obdurate, obdurately, obdurateness, obduration, perdurability, perdurable, perdurably, perdure, radurization, subdural, superdural, thermoduric, unendurable