IPA: /dʒəˈkoʊsli/
KK: /dʒoʊˈkoʊsli/
In a cheerful or playful way, often with humor.
She jocosely teased her friend about his new haircut.
Jocosely → It is formed from "jocus" (from Latin, meaning joke or jest) and the suffix "-ly" (meaning in a manner of). The word "jocosely" means in a joking or jesting manner.
Think of 'jocus' which means joke, and remember that 'jocosely' describes doing something in a joking manner.