CURTLY
curtly, short, shortly
(adverb) in a curt, abrupt and discourteous manner; “he told me curtly to get on with it”; “he talked short with everyone”; “he said shortly that he didn’t like it”
Source: WordNet® 3.1
Etymology
Adverb
curtly (comparative more curtly, superlative most curtly)
In a curt manner; tersely, almost rudely.
Source: Wiktionary
Curt"ly (krt"l), adv.
Definition: In a curt manner.
CURT
Curt (krt), a. Etym: [L. curtus; cf. Skr. kart to cut. Cf. Curtail.]
Definition: Characterized by exessive brevity; short; rudely concise; as,
curt limits; a curt answer.
The curt, yet comprehensive reply. W. Irving.
Source: Webster’s Unabridged Dictionary 1913 Edition