Etymology

From Proto-Germanic *þraupōną ‎(“to punish”), from Proto-Germanic *þrawō ‎(“torment, punishment”), from Proto-Germanic *þrawēną ‎(“to torment, injure, exhaust”), from Proto-Indo-European *trōw- ‎(“to beat, wound, kill, torment”). Akin to Old English þrēagan ‎(“to rebuke, punish, chastise”), þrēa ‎(“correction, punishment”), þrōwian ‎(“to suffer”).