cheer up vs jolly up

cheer up and jolly up both are verbs.

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

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

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

Other synonyms of cheer up include cheer, jolly along.

cheer up (verb)	jolly up (verb)
become cheerful	cause (somebody) to feel happier or more cheerful
cause (somebody) to feel happier or more cheerful