posca (pusca, Veg. Vet. 2, 48), ae, f. [perh. πόω, poto],
an acidulous drink of vinegar and water , Plaut. Mil. 3, 2, 23; id. Truc. 2, 7, 48; Cels. 4, 5 fin. ; Plin. 27, 4, 12, § 29; 28, 5, 14, § 56; Scrib. Comp. 46; Suet. Vit. 12; Spart. Hadr. 10; cf.: posca, ὀξύκρατον, πόσις, Gloss. Philox.