pep up vs root on

pep up and root on both are verbs.

Word	Noun	Adjective	Verb	Adverb
pep up	No	No	Yes	No
root on	No	No	Yes	No

As verbs, pep up and root on are synonyms defined as:

pep up and root on: spur on or encourage especially by cheers and shouts

Other synonyms of pep up include barrack, cheer, exhort, inspire, urge, urge on.

pep up (verb)	root on (verb)
make more interesting or lively	spur on or encourage especially by cheers and shouts
spur on or encourage especially by cheers and shouts