יוֹם m.n. (pl. יָמִים) 1 day. 2 time. 3 year. [Related to BAram., Aram., and Syr. יוֹם, יוֹמָא, Ugar. ym, Arab. yaum, Akka. ūmu (= day), Ethiop. yōm (= today), Aram. יְמָמָא, Syr. אִימָמָא (= day; in contradistinction to ‘night’). cp. יוֹמָא, יְמָמָה.] Derivatives: יוֹמוֹן, יוֹמִי, יוֹמָם, יוֹמִן, יוֹמְיוֹמִי. cp. the second element in בַּרְיוֹם.