beat: [OE] Old English bēatan and the related Old Norse bauta may be traced back to a prehistoric Germanic *bautan. It has been conjectured that this could be connected with *fu-, the base of Latin confūtāre and refūtāre (source respectively of English confute [16] and refute [16]) and of Latin fustis ‘club’ (from which English gets fusty [14]). => beetle, confute, fusty, refute[beat etymology, beat origin, 英语词源]