Why this word is great
CONFELICITY — [Noun] Pleasure or joy derived from another person's happiness. A learned borrowing from Latin con- ("with") + fēlīcitās ("happiness"). Unlike schadenfreude (which denotes pleasure in another's misfortune, the direct opposite of confelicity's joy) or compersion (which narrowly applies to romantic contexts), confelicity is the expansive warmth of unselfish delight. It is the quiet smile at a stranger’s laughter in the park, the swelling pride in a friend’s hard-won success, or the way sunlight seems brighter when reflected in the eyes of someone you love—proof that happiness, too, can be contagious.