词根：quaint = know, 表示“知道”

quaint a. 奇妙的，古怪的（人们想要知道怎么回事）

acquaint v. 使了解，告知（acc使+quaint→使[人们]知道→告知）

acquaintance n. 了解，熟悉（acquaint告知+ance表名词）

词根词缀：quaint-

【来源及含义】Latin > Old French > Middle English: well known, skillful, neat, elegant

【相关描述】This quaint- unit is directly related to this cogni- family of words.

【同源单词】acquaint, acquaintable, acquaintance, disacquaint, inacquaintance, nonacquaintance