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：gamo-, gam-, -gamy, -gamous

【来源及含义】Greek: marriage, union; wedding; pertaining to sexual union

【同源单词】adelphogamy, agamete, agamic, agamist, agamodeme, agamogenesis