recap vs recapitulate

recap is a noun but recapitulate is not a noun.

Word	Noun	Adjective	Verb	Adverb
recap	Yes	No	Yes	No
recapitulate	No	No	Yes	No

As verbs, recap and recapitulate are synonyms defined as:

recap (noun)	recapitulate (noun)
a summary at the end that repeats the substance of a longer discussion
a used automobile tire that has been remolded to give it new treads

recap (verb)	recapitulate (verb)
summarize briefly	summarize briefly
	repeat an earlier theme of a composition
	repeat stages of evolutionary development during the embryonic phase of life