quaff

nouns

a hearty draft
quaff
is a type of (narrower)
a serving of drink (usually alcoholic) drawn from a keg
"they served beer on draft"
draft, draught, potation, tipple

verbs

to swallow hurriedly or greedily or in one draught
"The men gulped down their beers"
gulp, quaff, swig
is derived from
quaffer