recusal vs recuse

recusal is a noun but recuse is not a noun.

Word	Noun	Adjective	Verb	Adverb
recusal	Yes	No	No	No
recuse	No	No	Yes	No

recusal (noun)	recuse (noun)
(law) the disqualification of a judge or jury by reason of prejudice or conflict of interest; a judge can be recused by objections of either party or judges can disqualify themselves

recusal (verb)	recuse (verb)
	challenge or except to a judge as being incompetent or interested, in canon and civil law
	disqualify oneself (as a judge) in a particular case