BDB2893
I. חֲמוֺר noun [masculine] heap, absolute ׳ ח with dual חֲמֹרָתָ֑יִם (Baer ׳ חְִמֹרֹת), as if from חֲמֹרָה; — בִּלְחִי הַחֲמוֺר חֲמוֺר חֲמֹרָתָ֑יִם Judg 15:16 with the ass's jawbone, a heap, two heaps, i.e. so many slain.
חֲמֹרֹתָ֑יִם see I. חֲמוֺר . above