IPA: /ˈdʒɔɪəsli/
KK: /ˈdʒɔɪəsli/
In a way that shows great happiness or delight.
The children danced joyously at the festival.
Joyously → It is formed from "joy" (from Old French *joie*, meaning happiness or delight) and "-ously" (meaning in a manner characterized by). The word "joyously" means in a manner characterized by joy or happiness.
Think of the word 'joy' which means happiness, and remember that 'joyously' describes doing something in a happy way.