trĕpondo — Lewis & Short
trĕpondo,
I neutr. indecl. [tres-pondus; cf. duapondo, under duo], three pounds:
ejusdem radicis trepondo, panacis pondo IV.,Scrib. Comp. 165:
adipis porcinae,id. ib. 271; cf. Quint. 1, 5, 15.