buy off vs pay off

buy off and pay off both are verbs.

Word	Noun	Adjective	Verb	Adverb
buy off	No	No	Yes	No
pay off	No	No	Yes	No

As verbs, buy off and pay off are synonyms defined as:

buy off and pay off: pay someone with influence in order to receive a favor

buy off (verb)	pay off (verb)
pay someone with influence in order to receive a favor	take vengeance on or get even
	eliminate by paying off (debts)
	pay someone with influence in order to receive a favor
	yield a profit or result
	pay off (loans or promissory notes)
	do or give something to somebody in return