jolly along vs cheer

jolly along is not a noun while cheer is a noun.

Word	Noun	Adjective	Verb	Adverb
jolly along	No	No	Yes	No
cheer	Yes	No	Yes	No

As verbs, jolly along and cheer are synonyms defined as:

jolly along and cheer: cause (somebody) to feel happier or more cheerful

Other synonyms of jolly along include cheer up, jolly up.

jolly along (noun)	cheer (noun)
	the quality of being cheerful and dispelling gloom
	a cry or shout of approval

jolly along (verb)	cheer (verb)
cause (somebody) to feel happier or more cheerful	become cheerful
	spur on or encourage especially by cheers and shouts
	show approval or good wishes by shouting
	cause (somebody) to feel happier or more cheerful
	give encouragement to