conviviality

Etymology

From convivial + -ity.

conviviality means the state of being convivial; a feeling of comfort and happiness, as from celebrating casually with friends. Lexicurio rates it Rare gem — a strength score of 77 out of 100.

Why this word is great

CONVIVIALITY — [Noun] The specific, tangible warmth generated by festive, shared enjoyment, particularly where food and drink dissolve the formal distances between people. From convivial (from Latin convivialis, from convivium "feast, banquet", from convivere "to live together with, to feast together", from con- "with" + vivere "to live") + the noun-forming suffix -ity. Unlike sociability, which is a general capacity for interaction, or cordiality, which implies a sincere but often polite restraint, conviviality is the enacted, generous heat of living together well for a few hours. It is the low, golden roar of a crowded pub, the clatter of plates passed hand to hand at a long table, the spontaneous, harmonizing laughter that rises above the chatter—a temporary, glorious triumph over the essential solitude of being.

noun

The state of being convivial; a feeling of comfort and happiness, as from celebrating casually with friends.“He's easy to talk to because of his conviviality.”
A jovial activity or spirit, marked by easy and lively socializing; a hospitable and festive atmosphere.“We're old friends, so once we started talking, the evening gained an air of conviviality.”