Cracking
来自Big Physics
Safin（讨论 | 贡献）2022年4月27日 (三) 23:15的版本 （建立内容为“Category:etymology == google == [https://www.google.com.hk/search?q=cracking+etymology&newwindow=1&hl=en ref] Old English cracian ‘make an explosive noise…”的新页面）
Old English cracian ‘make an explosive noise’; of Germanic origin; related to Dutch kraken and German krachen . crack (sense 4 of the noun) is from Irish craic ‘entertaining conversation’.
etymonline
cracking (adj.)
"excellent, first-rate," 1830s, colloquial, present-participle adjective from crack (v.).
