IPA: /ˈhɛlθɪli/
KK: /ˈhɛlθɪli/
In a way that promotes good health or well-being.
She eats healthily by choosing fresh fruits and vegetables.
Healthily → It is formed from "health" (from Old English *hælu*, meaning wholeness or well-being) and the suffix "-ly" (meaning in a manner of). The word "healthily" means in a manner that promotes wholeness or well-being.
Think of 'health' as wholeness or well-being, and remember that 'healthily' means doing something in a way that promotes that well-being.