מְעִיל mᵉʻîyl (H4598)

a robe (i.e. upper and outer garment)

1) robe 1a) a garment worn over a tunic by men of rank 1b) a long garment worn by David's daughters 1c) a garment of the high priest 1d) (fig.) of attributes

from מָעַל (H4603) in the sense of covering;