Webster’s Revised Unabridged Dictionary · 1913
Potable
Po′ta·ble (pō′tȧ·b'l), a. [F., fr. L. potabilis, fr. potare to drink; akin to Gr. πότος a drinking, πόσις a drink, Skr. pā to drink, OIr. ibim I drink. Cf. Poison, Bib, Imbibe.] Fit to be drunk; drinkable. "Water fresh and potable." Bacon. — n. A potable liquid; a beverage. "Useful in potables." J. Philips.