IPA: /ˈdʒɒlɪli/
KK: /ˈdʒɑːlɪli/
In a cheerful and happy way.
The children sang jollily during the holiday celebration.
Jollily → It is formed from "jolly" (from Middle English *jolie*, meaning cheerful or merry) and the suffix "-ly" (meaning in a manner of). The word "jollily" means in a cheerful or merry manner.
Think of being cheerful or merry ('jolly') and how the suffix '-ly' indicates the manner of doing something. So, when you think of 'jollily', imagine doing things in a cheerful way.