IPA: /ˈræspɪŋli/
KK: /ˈræspɪŋli/
In a rough or harsh manner, often producing a grating sound.
The old door creaked raspingly as it opened.
Raspingly → It is formed from "rasp" (from Old French *raspe*, meaning to scrape or rub) and the suffix "-ingly" (meaning in a manner of). The word "raspingly" describes an action done in a manner that is rough or grating, akin to scraping.
Think of the word 'rasp' which means to scrape or rub roughly, and remember that 'raspingly' describes doing something in a rough or grating manner.