logroll vs logrolling

logroll is not a noun while logrolling is a noun.

Word	Noun	Adjective	Verb	Adverb
logroll	No	No	Yes	No
logrolling	Yes	No	No	No

logroll (noun)	logrolling (noun)
	rotating a log rapidly in the water (as a competitive sport)
	act of exchanging favors for mutual gain; especially trading of influence or votes among legislators to gain passage of certain projects

logroll (verb)	logrolling (verb)
work toward the passage of some legislation by exchanging political favors such as trading votes