IPA: /hɑːrtˈwɔːrmɪŋ/
KK: /hɑrtˈwɔrmɪŋ/
Causing feelings of happiness and warmth, often through kindness or love.
The movie was so heartwarming that it made everyone in the audience smile.
Heartwarming → It is formed from "heart" (from Old English "heorte", meaning the organ that pumps blood and also symbolizes emotion) and "warming" (from Old English "wearmian", meaning to make warm). The word "heartwarming" describes something that makes the heart feel warm, often in an emotional or comforting way.
Think of something that makes your 'heart' feel 'warm' — that's what heartwarming means.
No commonly confused words.