Capis, capidis, pen. cor. f. g. Plin. A drinking cup.
Lewis and Short: Latin dictionary
căpis, ĭdis, f. [prob. akin to capio, q. v., but cf. kufo/s, bent; ku/pellon, cup; and ku/w, to hold], a bowl with one handle, especially used in sacrifices: invenitur etiam haec capis (capidis), cujus diminutivum est capidula: et vide quod magis Graecum esse ostenditur, cum in as protulit accusativum pluralem, Prisc. p. 708 P.; cf. also Paul. ex Fest. p. 48 Müll.; Varr. ap. Non. p. 547, 17; Liv. 10, 7, 10; Plin. 37, 2, 7, 18; Petr. 52, 2; v. capedo.