עִימְעוּם, (עִמְעֵם) obscuring or suppressing the law, irregular measure passed in an emergency. Y. Shebi. VIII, 38ᵃ bot.; Y. Ab. Zar. II, 41ᵈ, a. e. מהלכות של ע׳ one of the regulations passed in an emergency contrary to the real law. Ib. ויש ע׳ לאיסור dare you pass a prohibitory measure contrary to law?; Y. Sabb. I, 3ᶜ bot. (also עִימּוּם).