词根：-cad-, -cid-, -cas-

【词根含义】：落下,降临,发生

【词根来源】：来源于拉丁语动词cado, cadere, cecidi, casus(落下), 落下意味着降临, 降临意味着意外发生。

【同源单词】：decadence, decay, accident, accidental, accidentally

词根：-cis-, -cid-

【词根含义】：切

【词根来源】：来源于拉丁语动词caedo, caedere, cecidi, caesus(砍,劈)。

【同源单词】：circumcision, concise, concision, decision, decisive

前缀：de-

【词根含义】：去掉,取消;向下,减少;否定,相反;离开,分离;加强意义

【词根来源】：来源于拉丁语前缀de-。

【同源单词】：debate, debris, deburr, decadence, decay

词根词缀：-cise, -cis, -cide

【来源及含义】Latin: to cut, cut

【相关描述】From this combining form, we also get -cide, "kill", but don't confuse the two elements because they have different meanings and applications.

【相关词根词缀】Related cutting-word units: cast-; castrat-; -ectomy; mutil-; put-; sec-, seg-; temno-; -tomy; trunc-.

【同源单词】cement, chisel, circumcise, concise, concisely, conciseness

词根词缀：de-

【来源及含义】Latin: from, away from, off; down; wholly, entirely, utterly, complete; reverse the action of, undo; the negation or reversal of the notion expressed in the primary or root word

【同源单词】de die in diem, de facto, De gustibus non est disputandum, de jure, De minimis non curat praetor, De mortuis nihil nisi bonum