disown vs disinherit

disown and disinherit both are verbs.

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

As verbs, disown and disinherit are synonyms defined as:

disown and disinherit: prevent deliberately (as by making a will) from inheriting

disown (verb)	disinherit (verb)
cast off	prevent deliberately (as by making a will) from inheriting
prevent deliberately (as by making a will) from inheriting