renounce vs disown

renounce and disown both are verbs.

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

As verbs, renounce and disown are synonyms defined as:

Other synonyms of renounce include repudiate.

renounce (verb)	disown (verb)
cast off	cast off
turn away from; give up	prevent deliberately (as by making a will) from inheriting
leave (a job, post, or position) voluntarily
give up, such as power, as of monarchs and emperors, or duties and obligations