Illustrated Companion to the Latin Dictionary/Posca

This article incorporates text from a publication now in the public domain: Rich, Anthony (1849). The illustrated companion to the Latin dictionary, and Greek lexicon. p. vi. OCLC 894670115. https://archive.org/details/illustratedcompa00rich. 

POSCA (ὀξύκρατον). An ordinary drink amongst the lower classes of the Roman people, slaves, and soldiers on service; consisting of water and sour wine or vinegar, with eggs beat up in it. Plaut. Mil. iii. 2. 23. Suet. Vit. 12. Spart. Hadr. 10.