First, the definition of happiness.
1, happy; Happy.
2. something to celebrate; Something to celebrate.
Second, word formation
Joy, celebration, affection, joy, joy, etc.
form a word
1. Celebration [Xing]?
1, which deserves to be liked and celebrated.
2. Something to like and celebrate.
Second, love [X44AI]?
Have a good feeling or interest in people or things.