pleader vs plead

pleader is a noun but plead is not a noun.

Word	Noun	Adjective	Verb	Adverb
pleader	Yes	No	No	No
plead	No	No	Yes	No

pleader (noun)	plead (noun)
a lawyer who pleads cases in court

pleader (verb)	plead (verb)
	appeal or request earnestly
	enter a plea, as in courts of law
	offer as an excuse or plea
	make an allegation in an action or other legal proceeding, especially answer the previous pleading of the other party by denying facts therein stated or by alleging new facts