词根：-em-, -empt-, -sum-, -sumpt-

【词根含义】：拿,买

【词根来源】：-em-, -empt-, -sum-, -sumpt-(拿,买)来源于拉丁语动词emo, emere, emi, emptus(拿,买)和sumo, sumere, sumpsi, sumptus(拿,买);而sumere是由sub-(下,低)和emere(拿,买)组成的复合动词。

【同源单词】：example, exemplar, exemplary, exemplify, redeem

前缀：as-

【词根含义】：来,临近,加强意义

【词根来源】：ad-的变体

【同源单词】：ascertain, assault, assemble, assembly, assent

词根词缀：em-, emp-, empt-; sump-, -sum-

【来源及含义】Latin: a taking, to take, to take up, to buy, to select; to use, to spend, to consume

【同源单词】absumption, assume, assumed, assumer, assuming, assumpsit