χλαῖνα (chlaina)

Lat. laena, a large square upper-garment, a cloak, mantle, (Homer); it was made of wool, and worn over the χιτών, thrown over the shoulders, fastened with a pin or brooch περόνη). It is also called φᾶρος by (Homer), and in later Greek ἱμάτιον, Latin pallium.
derivation uncertain (ML)