BDB632
אֲסֵפָה noun feminine [verbal]. a collecting, gathering; אַסִּיר ׳ אֻסְּפוּ א Isa 24:22 they are collected, as a collecting captives unto a pit (dungeon); or they are gathered with a gathering (as) captives, compare Isa 22:18 but perhaps read אֹסֶף הָאַסִּיר (construct); see Weir Che.