אַגַּב, (contr. of אל גב = עַל, cmp. אַ־) prop. on the back, on top of, hence, upon, on the basis; (logic.) by dint of, on account of; by the way of. Snh. 95ᵇ א׳ אורחך while on thy road, i.e. incidentally, occasionally. Freq. אורחא א׳, v. אוֹרְחָא.—B. Mets. 21ᵇ א׳ דיקירי because they are heavy.—Ib. 11ᵇ, a. fr. מטלטלין א׳ מקרקעי the sale of movable chattel made binding by dint of immovable property jointly sold; cmp. קַרְקַע.—Kidd. 26ᵇ א׳ אחר by means of somebody else (taking possession in behalf of the absent person). Ib. 27ᵃ מי בעינן א׳ is it necessary that he must say, ‘Acquire movable by dint of acquiring landed property’?—Pes. 113ᵃ כל א׳ גביא בעיא every claim the legality of which rests on some additional circumstance (e.g. a loan collectible only on producing the note of indebtedness) requires collection (cannot be considered actual property until collected).—Sabb. 116ᵃ א׳ כתב הוא דקדוש the parchment is sacred only on account of the sacred character of what is written on it.—Shebu. 40ᵇ, v. גְּרָרָא; a. fr.