cheer vs cheerlead

cheer is a noun but cheerlead is not a noun.

Word	Noun	Adjective	Verb	Adverb
cheer	Yes	No	Yes	No
cheerlead	No	No	Yes	No

As verbs, cheerlead is a hyponym of cheer; that is, cheerlead is a word with a more specific, narrower meaning than cheer:

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

cheer (verb)	cheerlead (verb)
become cheerful	act as a cheerleader in a sports event
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