IPA: /ˈhɑːrtənɪŋli/
KK: /hɑrtənɪŋli/
In a way that makes someone feel happier or more hopeful.
The news was hearteningly positive, lifting everyone's spirits.
Hearteningly → It is formed from "heart" (from Old English "heorte", meaning the organ that pumps blood and also symbolizes emotion) and "-en" (a suffix used to form verbs indicating to make or become) and "-ly" (a suffix that turns an adjective into an adverb). The word "hearteningly" means in a manner that makes one feel more cheerful or encouraged, as if one’s heart is uplifted.
Think of the word 'heart' representing emotions and feelings, and remember that 'hearteningly' means to do something in a way that uplifts or encourages the heart.