godan verb (-ku), transitive verb
Expresses jealousy or envy toward someone else's success, possessions, or relationships. Often used in the form 妬いてる or 妬くほど.
See also: 焼く (やく)
友達の新しい車を妬いてしまう。
I can't help being jealous of my friend's new car.
彼は同僚の昇進を妬いている。
He is envious of his colleague's promotion.