IPA: /ˈkɜːrtli/
KK: /kɜrtli/
In a way that is brief and to the point, often seeming rude or unfriendly.
She answered the question curtly, making it clear she didn't want to discuss it further.
Curtly → It is formed from "curt" (from Latin "curtus", meaning shortened or cut off) and the suffix "-ly" (meaning in a manner of). The word "curtly" means in a manner that is brief or rudely short, as if something has been cut off.
Think of someone speaking in a 'shortened' way ('curt') — that's why 'curtly' means speaking briefly or rudely.