reciprocation vs reciprocate

reciprocation is a noun but reciprocate is not a noun.

Word	Noun	Adjective	Verb	Adverb
reciprocation	Yes	No	No	No
reciprocate	No	No	Yes	No

reciprocation (noun)	reciprocate (noun)
the act of making or doing something in return
alternating back-and-forth movement
mutual interaction; the activity of reciprocating or exchanging (especially information)

reciprocation (verb)	reciprocate (verb)
	alternate the direction of motion of
	act, feel, or give mutually or in return