Joviality (noun)

The state or quality of being jovial; good-humor and cheerfulness.

Origin:

Derived from the latin word "jove" meaning jupiter, the roman god of the sky and thunder, often associated with good cheer and merriment.

Examples:

1. His joviality was infectious and made everyone around him feel happy.
2. The party was filled with joviality and laughter.
3. She was known for her joviality and always had a smile on her face.
4. The joviality of the group made the long car ride bearable.
5. His joviality helped to ease the tension in the room.