词根词缀：deon-, deont-

【来源及含义】Greek: duty, that which is binding; obligation; necessity

【同源单词】deontic, deontic logic, deontological, deontological ethics, deontologism, deontologist

词根词缀：deorsum-

【来源及含义】Latin: downward, downwards

【同源单词】deorsum, deorsumduction, deorsumvergence, deorsumversion

词根词缀：der-, dero-

【来源及含义】Greek: neck

【同源单词】derodidymus

词根词缀：dermo-, derm-, derma-, dermato-, dermat-, -derm, -derma, -dermatic, -dermatous, -dermis, -dermal, -dermic, -dermoid, -dermatoid

【来源及含义】Greek: skin

【同源单词】acarine dermatosis, acarodermatitis, achromoderma, achromodermia, acrodermatitis, acrodermatosis

词根词缀：-desis

【来源及含义】Greek: to bind, binding, fusing; surgical fixation

【同源单词】arthrodesis, epiphysiodesis, fasciodesis, parasyndesis, pleurodesis, spondylosyndesis

词根词缀：desm-, desmo-

【来源及含义】Greek: band, bond; ligament

【同源单词】anisodesmic, desmectasia, desmitis, desmocranium, desmogenous, desmography

词根词缀：deterior-, deteriorat-

【来源及含义】Latin: to make worse, to become worse; lower, inferior; unfavorable; decline, declining; diminish, diminishing

【同源单词】alcoholic deterioration, biodeterioration, deteriorate, deterioration, deterioration of attention, deteriority

词根词缀：deuter-, deutero-, deut-

【来源及含义】Greek: two; second [in a series]

【同源单词】deuteragonist, deuteranomalous, deuteranomaly, deuteranopia, deuteranopic, deuteripara

词根词缀：dexter-, dextra-, dextro-

【来源及含义】Latin: right, right hand, to the right; therefore, "skillful, fortunate"

【同源单词】ambidexter, ambidexterity, ambidextrous, ambisinistrodextrous, ambo dexter, amylodextrin

词根词缀：di-, dicho-, dich-

【来源及含义】Greek: number two; twice, divided, double; unalike; a number used as a prefix

【同源单词】diacanthous, diacid, diadelphous, dianthous, diarch, diarchy