Killer
来自Big Physics
Safin（讨论 | 贡献）2022年4月27日 (三) 02:15的版本 （建立内容为“Category:etymology == wiktionary == [https://en.wiktionary.org/wiki/killer ref] kill + -er. == etymonline == [https://www.etymonline.com/word/killer…”的新页面）
wiktionary
kill + -er.
etymonline
killer (n.)
late 15c., agent noun from kill (v.). But a surname, Ric[hard] Le Kyller is attested from 1288. Figurative use from 1550s. Meaning "impressive person or thing" is by 1900 (as an adjective, 1979); reduplicated form killer-diller attested by 1938. Killer whale is from 1854 (earlier simply killer 1725); killer instinct is attested from 1931, originally in boxing.
