Nifty
来自Big Physics
wiktionary
From *nift + -y. First element is of unknown origin. Possibly theatrical slang, as a shortened, altered form of Magnificat.
etymonline
nifty (adj.)
"smart, stylish, good-looking," 1868, of unknown origin, perhaps theatrical slang, first attested in a poem by Bret Harte, who said it was a shortened, altered form of Magnificat. Related: Niftily; niftiness.
