IPA: /səˈpɜːr.bli/
KK: /sʊˈpɜrˌbli/
In a way that is excellent or of very high quality.
She performed superbly in the competition, impressing everyone with her skills.
Superbly → It is formed from "super-" (meaning above or beyond) and "belle" (from Latin "bellus", meaning beautiful). The word "superbly" means in a manner that is above or beyond beautiful, indicating excellence or grandeur.
Think of something that is 'above' ('super-') beautiful ('belle') — that's why superbly means done in an excellent or grand manner.