词根词缀：prav-

【来源及含义】Latin: crooked, crookedness; perverted, vicious, wicked; borrowed through Old French depraver or directly from Latin depravare, "to corrupt"; from de, "completely" + pravus, "crooked"

【同源单词】depravation, deprave, depraved, depravedly, depravedness, depravement

词根词缀：praxis-, -praxsis, -praxia, -praxic, -praxi-

【来源及含义】Greek > Latin: to do, to exercise, doing; action, activity, practice; the opposite of theory; from the stem of prassein, "to do, to act"

【同源单词】actinopraxis, agnostic apraxia, akinetic apraxia, amnesic apraxia, aphagopraxia, apraxia

词根词缀：pray, preca-

【来源及含义】Latin: to ask, to entreat; ask earnestly, entreaty, beg; request, petition, pray, prayer

【同源单词】deprecate, deprecation, deprecative, deprecatory, imprecate, imprecation

词根词缀：pre-, prae-

【来源及含义】Latin: before [both in time and place]

【相关描述】The prefix prae- can actually be substituted for pre- because both of them are different spellings for the same prefix meaning "before".

【相关词根词缀】 Related before-word units: ante-; antero-; anti-; pro-. Related "time" units: aevum, evum; archaeo-, archeo-; Calendars; chrono-; horo-; Quotes: Time; tempo-.

【同源单词】preacquaint, preacquaintance, preagonal, pre-agricultural, preamble, preambular

词根词缀：pred-

【来源及含义】Latin: booty, plunder, pillage, ravage

【同源单词】depredate, depredation, depredator, depredatory, obligate predator, predacious

词根词缀：prehend-, prehens-

【来源及含义】Latin: to clasp, seize; reach, attain; hold, take

【同源单词】apprehend, apprehender, apprehending, apprehensible, apprehensibly, apprehension

词根词缀：presby-, presbyo-

【来源及含义】Greek: old, relationship to old age, elderly, elder; literally, "he that goes first"

【相关词根词缀】 Related "old; old age, elder" units: gero-; obsolesc-; sen-; veter-.

【同源单词】elder, elder share, presbyasomnia, presbyatrics, presbycardia, presbycusis

词根词缀：press-, presso-, pressi-, -prim-, -prin-

【来源及含义】Latin: press, to bear down on or against

【同源单词】acufilopressure, acupressure, acupressurist, angiopressure, blueprnt, compress

词根词缀：preti-, prais-, preci-, pric-

【来源及含义】Latin: price, reward, prize, value, worth

【同源单词】appraisal, appraise, appraisement, appraiser, appreciable, appreciably

词根词缀：prim-, primi-, primo-

【来源及含义】Latin: first, chief, foremost; of first rank

【同源单词】A primo ad ultimum, Christus primatum tenes, imprimatur, imprimatura, imprimis, Naturam primum cognoscere rerum