H2571. chamushim
חֲמֻשִׁים adjective plural in battle array, always this form, [Exod 13:18] (E), [Josh 1:14]; [4:12] (both D), [Judg 7:11] + [Num 32:17] (JE), see חושׁ.
חמת (√ of following; meaning unknown; Mv and others, very improbably, from Arabic grow rancid, putrid; see on formation, LagBN 154).