Joy
joy noun
ˈjȯi
Definition of joy (Entry 1 of 2)
1a : the emotion evoked by well-being, success, or good fortune or by the prospect of possessing what one desires : DELIGHT
b : the expression or exhibition of such emotion : GAIETY
2 : a state of happiness or felicity : BLISS
3 : a source or cause of delight
(Definition is taken from https://www.merriam-webster.com/dictionary/start)