נוּקְשֶׁה, (קָשָׁה) old, spoiled, esp. נ׳ (חמץ) a leavened substance unfit for food. Pes. 43ᵃ נ׳ בעיניה spoiled leavened substance in its natural condition, opp. ע"י תערובת in a mixture. Men. 54ᵃ; a. fr.—[Ar.: נוּקְשָׁא.]