词根词缀：di-, dicho-, dich-

【来源及含义】Greek: number two; twice, divided, double; unalike; a number used as a prefix

【同源单词】diacanthous, diacid, diadelphous, dianthous, diarch, diarchy

词根词缀：dis-, di-, dif-

【来源及含义】Latin: separation, apart, asunder; removal, away, from; negation, deprivation, undoing, reversal, utterly, completely; in different directions

【相关描述】The meaning of dis- varies with different words; dif-, assimilated form of dis- before f; di-, form of dis- before b, d, g, l, m, n, r, and v.

【同源单词】diffect, differ, difference, different, differentia, differential

词根词缀：lemma-, lemmata-

【来源及含义】Greek > Latin: to take [something for granted]; an assumption taken for granted; premise; anything taken

【相关描述】Don't confuse the words in this unit with another lemmo-, lemm- lemma- unit meaning "sheath, husk".

【同源单词】analemma, dilemma, lemma, lemmatize, pentalemma, polylemma