root

a simple form inferred as the common basis from which related words in several languages can be derived by linguistic processes

cause to take roots

cheer for

“She roots for the Broncos”

come into existence, originate

“The problem roots in her depression”

plant by the roots

take root and begin to grow

“this plant roots quickly”

the embedded part of a bodily structure such as a tooth, nail, or hair

someone from whom you are descended (but usually more remote than a grandparent)

become settled or established and stable in one's residence or life style

the form of a word after all affixes are removed

the set of values that give a true statement when substituted into an equation