BDB2447
מִזְרֶה noun [masculine] pitch-fork, with six prongs (= [untranscribed source text 1556]) used in winnowing, compare WetzstZPV 1891, xiv. 2 ; for winnowing provender ׳ זֹרֶה בָרַחַת וּבְמ Isa 30:24 figurative for winnowing, i.e. chastising the people ׳ וָאֶזְרֵם בְּמ Jer 15:7.