potation (n.)

"an occasion of drinking" (especially alcoholic beverages); "a liquor or potion drunk, concoction, medical drink," early 15c., potacioun, from Old French potacion, from Latin potationem (nom. potatio) "a drinking; poisonous drink, potion," noun of action from past participle stem of potare "to drink" (from PIE root *po(i)- "to drink").