căpēdo (căpūdo), ĭnis, f. [capis],
a bowl or cup used in sacrifices , Cic. Par. 1, 2, 11; id. Rep. 6, 2, 2; cf. the foll. and capis.
capēdō (capūdō, capp-) inis, f CAP-, a bowl used in sacrifices . ...
An Elementary Latin Dictionary