cheerfully; happily; in good humor
Describes doing something in a cheerful, willing, or good-natured manner. Often used when someone acts without complaint or with a pleasant attitude.
He cheerfully helped me.
She is singing happily.
Standard kanji spelling for the adverbial phrase.
Alternate kanji spelling using 良く instead of よく.
Formed from the noun 機嫌 (mood, temper) and the adverbial form of 良い (よい), meaning 'in a good mood' or 'cheerfully'.