TgJ Is40:6 :כָל רַשִיעַיָא כְעִסבָא וְכָל תֻקפְהוֹן כְמוֹצָא דְחַקלָא‏ : all the wicked are like grass and all their might like field chaff
See the entire entry for mōṣ, mōṣā, mōzā n.m. chaff