Word Origin & History
bung
c.1440, from M.Du. bonge "stopper," or perhaps from Fr. bonde, which may be of Gmc. origin, or from Gaul. bunda (cf. O.Ir. bonn, Gael. bonn, Welsh bon "base, sole of the foot"). It is possible that either or both of these sources is ult. from L. puncta in the sense of "hole."