IPA: /ˈnɪp.ɪŋ.li/
KK: /ˈnɪpɪŋli/
In a way that is sharp or biting, often referring to cold weather or a brisk sensation.
The wind blew nippingly, making everyone wrap their scarves tighter.
Nippingly is formed from "nip" (of uncertain origin, possibly from Old English "hnipan", meaning to pinch or bite) and the suffix "-ly" (meaning in a manner of). The word describes an action done in a manner that pinches or bites, often referring to a sharp, cold sensation.
Think of the word 'nip' which suggests a sharp pinch or bite, and remember that 'nippingly' describes something done in a way that feels like a sharp, biting sensation.