אָבַד (b. h.; √אב , v. אבב) to be pressed, go around in despair (v. Prov. XXXI, 6; Deut. XXVI, 6) to be given up, whence 1) to be lost, perish; to be beyond recognition. Sifré Deut. 301 (ref. to Deut. XXVI, 5) לא ירד … אלא לאובד (read לוֹבֵד or לֶאֱבוֹד; Yalk. Deut. a. l. לאבדם prob. לאַבְרָּן; Ms. Zer. Abr. 3 לֵיאָבֵר) Jacob went to Aram with no hope but to perish (be a slave &c.). Ohol. XVII, 3 a field שא׳ בו קבר in which there is a grave that cannot be located. Keth. XIII, 7 אָבְדָה דרך וכ׳ the path to his field cannot be traced. Gen. R. s. 91 אבידה א׳ לנו we have lost something; a. fr. —2) to lose. Ib. ואנו שאָבַדְנוּ ר׳ ס׳ and we who have lost (mourn for) R. S.; a. fr.—Part. pass. אָבוּד lost, irretrievable, perishing, decayed. Keth. 108ᵃ על הא׳ on a contribution to the Temple which has been lost on the road. Y. Shebi. IX, 38ᵈ top מאיליהן הן אֲבוּדִין they perish of themselves (they decay naturally); a. fr.
    Nif. - נֶאֱבַד to be lost, perish. Keth. 104ᵃ; a. fr. Sifré Deut. 301 לֵיאָבֵד, v. supra.
    Pi. - אִיבֵּד 1) to waste, lose, forfeit, destroy. Ned. 33ᵇ אי׳ את מעותיו he wasted his money, (cannot reclaim it). Keth. XIII, 6 אי׳ את זכותו he forfeited his claim. Ab. Zar. 55ᵃ אנו נְאַבֵּד וכ׳ shall we give up our honest dealing? Ib. IV, 7 יְאַבֵּד עולמו shall He destroy His world? Ḥag. 3ᵃ ובקשתם לאַבְּדָהּ ממני and you wanted to deprive me of it? Ib. 4ᵃ זה המְאַבֵּד וכ׳ one who destroys what is given to him.—א׳ עצמו לדעת to commit suicide wilfully. Gen. R. s. 82; a. fr. —2) to drop from memory, to forget. Aboth V, 12; a. e.