Origin: 1560–70; < Latin contrādictus (past participle of contrādīcere to gainsay), equivalent to contrā-contra-1 + dic- (variant stem of dīcere to speak) + -tus past participle suffix
1570s, "speak against," also "assert the contrary" (1580s), from contradict-, pp. stem of contradicere (see contradiction). Related: Contradicted (c.1600); contradicting (c.1600); contradictive. (mid-17c.).