חַדְסַר, (= חד עסר) eleven, eleventh. Targ. Y. I Deut. I, 2. Ib. 3 ח׳ ירח eleventh month. Targ. Y. Ex. XXVI, 7; a. e.—R. Hash. 21ᵃ top בח׳ וכ׳ on the eleventh of Tishri. Arakh. 12ᵃ חדסרי (some ed. חד ס׳). Taan. 18ᵇ חֲדֵיסַר (Ms. M. חד סר) the eleventh (of Adar).