"large spar extending from the bow of a ship with one or more sails of its own," late 13c., probably from Middle Low German bochspret, from boch "bow of a ship" (see bow (n.2)) + spret "pole" (compare Old English spreot "pole," Dutch spriet "spear;" see sprit). French beaupre is a Dutch loan word.[bowsprit etymology, bowsprit origin, 英语词源]