foreswear vs renounce

foreswear and renounce both are verbs.

Word	Noun	Adjective	Verb	Adverb
foreswear	No	No	Yes	No
renounce	No	No	Yes	No

As verbs, foreswear and renounce are synonyms defined as:

Other synonyms of foreswear include quit, relinquish.

foreswear (verb)	renounce (verb)
turn away from; give up	cast off
do without or cease to hold or adhere to	turn away from; give up
	leave (a job, post, or position) voluntarily
	give up, such as power, as of monarchs and emperors, or duties and obligations