Meaning of “grow on sb” - Learner’s Dictionary

grow on sb

phrasal verb with grow uk us /ɡrəʊ/ verb (past tense grew, past participle grown)

If someone or something grows on you, you start to like them:

I didn't like her at first but she's grown on me over the years.

(Definition of “grow on sb” from the Cambridge Learner’s Dictionary © Cambridge University Press)