roost vs take root

roost is a noun but take root is not a noun.

Word	Noun	Adjective	Verb	Adverb
roost	Yes	No	Yes	No
take root	No	No	Yes	No

As verbs, take root is a hypernym of roost; that is, take root is a word with a broader meaning than roost:

roost: settle down or stay, as if on a roost
take root: become settled or established and stable in one's residence or life style

Other hypernyms of roost include root, settle, settle down, steady down.

roost (noun)	take root (noun)
a perch on which domestic fowl rest or sleep
a shelter with perches for fowl or other birds

roost (verb)	take root (verb)
settle down or stay, as if on a roost	become settled or established and stable in one's residence or life style
sit, as on a branch