potabilis

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.

pōtābĭlis, e, adj. [poto],

that may be drunk , drinkable , potable (post-class.), Aus. Clar. Urb. 14, 31: medicamina, Cael. Aur. Tard. 1, 4, 112: fons, Amm. 18, 9, 2.