Root

树根

shùgēn

(part of a plant)

根

gēn

(of a tooth)

根源

gēnyuán

(primary source)

詞根 /词根

cígēn

(philology: word from which another word or words are derived)

語根 /语根

yǔgēn

(linguistic morphology: primary lexical unit of a word)

语根

yǔgēn

(linguistic morphology: primary lexical unit of a word)