Question

15. cid, cis [L]=

Accepted Answer

to cut 切
cid 和cis 是一对同源异形根，来自拉丁动词caedere，意为to cut（切）。cid 是不定式词干，
cis 是动名词词干。

decide [de-=away 离；cid=to cut 切；-e→“to cut away 切掉”→“to cut short and bring an end
to something 裁断某事使之告结”→] v. settle bygiving judgement 裁决；决定：The question has
been decided.问题已经解决。

▽decidable [decid(e);-able a.] a.可以决定的；解决得了的

decision [decide 的对应名词：decis=to decide 决定；-ion n.=the act or result 表行为或结果→] n.
the act or result of deciding 决定：The matter is coming to a decision.事情就要定下来了。

▽decisive [decide 的对应形容词] a.决定性的；果断的

concise [con-(-com)=thoroughly 彻底地；cis=to cut 切；-e→“being cut off the unnecessary parts
切去不必要的部分”→] a. cut short;brief 简洁的；简明的：Write a concise summary of the book.
写出这本书的内容简要。

▽concision [concis(e);-ion n.] n.简明性；简洁性

precise [pre-=beforehand 事先；cis=to cut 切；-e→“being cut off vague-ness beforehand 事先
已切除含糊的东西的”→] a. clear-cut;accurate 明确的；精确的：Be more precise in your answer.
回答得更明确些。

▽precision [precis(e);-ion n.] n.精确性；精密度

excide [ex-=out, away 出，去；cid=to cut 切；-e→] v. cut out;cut away from 切开；切除：The
surgeon excided the carbuncle with great skill.外科医生熟练地切除了痈疽。

▽excision [ex-;cis;-ion n.] n.切除；删除

incise [in-=into 入；cis=to cut 切；-e-→] v.① cut into 切入，切开：to incise a can with a knife
用小刀打开罐头盒② engrave 雕刻：to incise a bust 雕刻半身像

▽incision [incis(e);-ion n.] n.切入；切开；雕刻
incisure [incis(e);-ure n.] n.切口；刀痕

incisive [in-=into 入；cis=to cut 切；-ive a.=like 像……的→“like cutting into 像刀切进去一般”
→] a. cutting;sharp or keen 锐利的；透彻的：incisive criticisms 尖锐的批评
由cid 生成的后缀-cide 表示killing（杀）或者killer（杀……者）。
homicide [hom=man 人；-i-;cide n.=killing, killer 杀，杀……者→] n.① killing of man 杀人②
killer of man 杀人者

▽homicidal [homicid(e);-al a.] a.杀人的

suicide [sui=oneself 自己；-cide n.=killing, killer 杀，杀……者→“killing or killer of oneself 杀
自己（者）”→] I n.① killing of onesel 自杀行为：to commit suicide 自杀②one who kills himself
intentionall 自杀者→Ⅱv. kill oneself 自杀：He was forced to suicide.他被迫自杀。

▽suicical [suicid(e) n.;-al a.] a.自杀的

bactericide [bacteri=bacteria 细菌；-cide n.=killer 杀……剂] n. killer of bacteria 杀菌剂

▽bactericidal [bactericid(e);-al a.] a.杀菌的

Cut N Killer Incise Cis Decide V Act