- kosher (adj.)
- "ritually fit or pure, clean, lawful, conforming to the requirements of the Talmud" (especially of food), 1850, in early use also kasher, coshar, from Yiddish kosher, from Hebrew kasher "fit, proper, lawful," from base of kasher "was suitable, proper." Generalized sense of "correct, legitimate" is from 1896.
