merriness
/'merɪnəs/a mood characterized by high spirits and amusement and often accompanied by laughter.
noun [具体名词] 快活;愉快
Daisy is a kind of the lovely, which means merriness, happiness, peace and hope. 雏菊是一种很可爱的花,它的花语是愉快、幸福、和平、希望。