Lewis Short
pōtātor (noun M) : id.
* A drinker, toper, bibber (ante- and post-class.): potatores maximi,Plaut. Men. 2, 2, 34: vini,Hier. Ep. 52, n. 11; cf. Vulg. Matt. 11, 19; (opp. vorator),Tert. Monogr. 8 fin.: aquae,Sil. 16, 476.
Charlton T. Lewis, Charles Short, A Latin Dictionary