Lewis Short
perpōtātĭo (noun F) : perpoto
* A continued drinking, a drinking-bout: biduo duabusque noctibus perpotationem continuare,Plin. 14, 22, 28, § 145: intemperantissimae perpotationes,Cic. Pis. 10, 22: vomitiones ac rursus perpotationes,Plin. 29, 1, 8, § 27.
Charlton T. Lewis, Charles Short, A Latin Dictionary