potation vs quaff

potation and quaff both are nouns.

Word	Noun	Adjective	Verb	Adverb
potation	Yes	No	No	No
quaff	Yes	No	Yes	No

As nouns, quaff is a hyponym of potation; that is, quaff is a word with a more specific, narrower meaning than potation:

potation (noun)	quaff (noun)
the act of drinking (especially an alcoholic drink)	a hearty draft
a serving of drink (usually alcoholic) drawn from a keg

potation (verb)	quaff (verb)
	to swallow hurriedly or greedily or in one draught