surrebuttal vs surrebutter

surrebuttal and surrebutter both are nouns.

Word	Noun	Adjective	Verb	Adverb
surrebuttal	Yes	No	No	No
surrebutter	Yes	No	No	No

As nouns, surrebuttal and surrebutter are synonyms defined as:

surrebuttal and surrebutter: (law) a pleading by the plaintiff in reply to the defendant's rebutter

surrebuttal (noun)	surrebutter (noun)
(law) a pleading by the plaintiff in reply to the defendant's rebutter	(law) a pleading by the plaintiff in reply to the defendant's rebutter