From chalats; a mantle (as easily drawn off) -- changeable suit of apparel, change of raiment.
see HEBREW chalats
H4254. machalatsah
[מַחֲלָצָה] noun feminine robe of state (taken off in ordinary life); — only plural absolute מַחֲלָצוֺת Isaiah 3:22 robes of ladies of Jerusalem; Zechariah 3:4 of high priest.