词根:cid, cis = cut, kill, 表示“切开, 杀”
decide 决定,决心(de加强+cide切→切下去→下决心)
homicide 杀人(homi人+cide)
insecticide 杀虫剂(insect昆虫+cide)
suicide 自杀(sui自己+cide)
pesticide 杀虫剂(pest害虫+cide)
circumcise 行割礼,割包皮
concise 简明的
decision 决心,决议(decide的名词)
excise 割去,删去(ex出+cise)
excision 删除,灭绝(excise+ion)
incisive 一针见血的,锐利的(incise+ive→切人的→一针见血的)
incisor 门牙(incise+or→切东西的东西→门牙)
precise 精确的,清楚的(pre预先+cise→预先切好→精确的)
precision 精密,正确