IPA: /ˈdæʃ.ɪŋ.li/
KK: /ˈdæʃɪŋli/
In a way that is stylish, attractive, or confident.
He walked into the room dashingly, catching everyone's attention.
Dashingly → It is formed from "dash" (from Middle English *dashe*, meaning to strike or move quickly) and the suffix "-ingly" (meaning in a manner of). The word "dashingly" describes doing something in a quick, stylish, or spirited manner.
Think of someone moving quickly and stylishly — that's what 'dashingly' means, as it combines the idea of striking quickly with a manner of doing it.