前缀：e-, ex-

【词根含义】：出,向外;向上

【词根来源】：e-用在b, c, d, g, j, l, m, n, r, v前;ex-用在s前时,s常省略。来源于拉丁语前缀ex-。

【同源单词】：edit, edition, editor, editorial, educate

词根词缀：caus-

【来源及含义】Latin: cause, reason, purpose; judicial process, lawsuit

【同源单词】accusable, accusably, Accusare nemo se debet, accusation, accusative, accusatively