"rower's bench," 1620s, alteration of thoft, from Old English þofte, from Proto-Germanic *thufto- (cf. Dutch doft, German ducht), from PIE *tupta-, from root *tup- "to squat."
Online Etymology Dictionary, © 2010 Douglas Harper
Examples from the Web for thaught
I thaught that was riserved for those that is not regglar attenders at church or made faces at goveness.Mr Punch's Animal Land
E. T. Reed