词根词缀：carpo-, carp- (cerp-)

【来源及含义】Latin: to pluck, to pick out, to gather, to select

【相关描述】The change of Latin "a" to "e" is due to the Latin phonetic law according to which in the unaccented and closed radical syllable of the second element of compounds, original "a" becomes "e".

【同源单词】Ancestors or Latin origins of words in English, cacoethes carpendi, caco, Carpe diem, Carpe noctem, Carpent tua poma nepotes

词根词缀：ex-, e-, ef-

【来源及含义】Latin: a prefix occurring in words of Latin origin used in the senses: out, out of, from; upward; completely, entirely; to remove from, deprive of; without; former [said of previous holders of office or dignity]

【相关描述】Before f, ex- becomes ef-; before all voiced consonants (as b, d, g, etc.) ex- becomes e-.

【同源单词】e pluribus unum, educate, educe, efface, effacement, effete

词根词缀：-tion

【来源及含义】Latin: a suffix forming nouns from verbs of condition and action; an act or process: resumption, absorption; state or condition, redemption, exhaustion; something resulting from or otherwise related to an act or process, assumption, friction

【相关描述】This unit is presenting a small fraction of the hundreds of words ending with the suffix of -tion; however, there is a significant number of words which may help everyone have a better understanding and appreciation of the use of this element.

【同源单词】abduction, abjection, ablution, ablution, abolition, abruption