From Middle English trowen, trouwen, treuwen, treowen, from Old English trēowan, trīewan (“to trust”) and Old English trūwian (“to trust, confide”), from Proto-Germanic *triwwijaną (“to trust”) and Proto-Germanic *trūwijaną (“to trust”); both from Proto-Indo-European *drew- (“faithful, true”). Akin to Scots trow, trew (“to believe, trust, confide in, prove”), Dutch trouwen (“to wed, marry”), German trauen (“to trust, marry”), Danish, Norwegian Bokmål and Swedish tro (“to believe, think”), Norwegian Nynorsk tru (“to believe, think”), Icelandic trúa (“to trust, believe, believe in”).
- (archaic or dialectal) To trust or believe.
- (archaic or dialectal) To have confidence in, or to give credence to.
- (dated, nautical, countable) Any of several flat-bottomed sailing boats used for fishing or for carrying bulk goods
- (Scotland, dated) troll