词根词缀：contra-, contro-, counter, contre-

【来源及含义】Latin: against, opposed to, opposite, conflicting, different, clashing, unaccommodating

【同源单词】accounter, acrocontracture, contentious, contraband, contrabandist, contrabass

词根词缀：veno-, ven-

【来源及含义】Latin: poison

【相关词根词缀】 A cross reference of another word family that is related directly, or indirectly, with: "poison": toxico-; viru-.

【同源单词】antivenin, antivenom, antivenomous, anvenom, avenom, countervenom