IPA: /ˈhɑːrtɪnəs/
KK: /ˈhɑrtɪnəs/
The quality of being hearty, which means being warm, friendly, and full of energy or enthusiasm.
The heartiness of the meal made everyone feel satisfied and happy.
Heartiness → It is formed from "heart" (from Old English "heorte", meaning the organ that pumps blood and also symbolizes emotion) and "-iness" (a suffix meaning the quality of being). The word "heartiness" refers to the quality of being hearty, which can imply warmth, sincerity, or vigor.
Think of the word 'heart' representing warmth and emotion, and remember that 'heartiness' means the quality of being warm and sincere.