后缀：-acity [名词后缀]

构成抽象名词，表示性质、状态、情况、与形容词后缀-acious相对应

rapacity 掠夺

vivacity 活泼，有生气

sagacity 聪明，贤明

veracity 诚实，真实

capacity 容量

audacity 大胆

laoqucity 多言，健谈

edacity 贪吃

sequacity 盲从

后缀：-icity [名词后缀]

大多数由-ic+-ity而成，构成抽象名词，表示性质、情况、状态

simplicity 简单，简明

periodicity 周期性

historicity 历史性

publicity 公开（性）

domesticity 家居生活

centricity 中心，中央

sphericity 球状

atomicity 原子价，原子数

plasticity 可塑性

elasticity 弹性，弹力

词根词缀：-acity

【来源及含义】Latin: suffix; quality of

【相关描述】A suffix that forms nouns of quality or state. There are hundreds of other -acity suffixes; however, the following will present significant examples.

【同源单词】audacity, bellacity, bibacity, capacity, carnivoracity, contumacity

词根词缀：toxico-, toxic-, toxi-, tox-, toxin-, -toxically, -toxaemia, -toxemia, -toxaemic, -toxemic, -toxical, -toxy, -toxis, -toxicosis, -toxism, -toxia, -toxin, -toxicity

【来源及含义】Greek: poison

【相关词根词缀】 A cross reference of another word family that is related directly, or indirectly, with: "poison": veno-; viru-.

【同源单词】abstemious, acarotoxic, acetyldigitoxin, actinotoxemia, actinotoxin, adrenotoxin