chas·u·ble 
(chăzə-bəl, chăzhə-, chăsə-)
(chăzə-bəl, chăzhə-, chăsə-)n.
A long sleeveless vestment worn over the alb by a celebrant during religious services.
[French, from Old French, from Late Latin casubla, hooded cloak, from alteration of casula : Greek kassos, thick and rough garment (of Semitic origin ; akin to Akkadian kusītu, garb, and Hebrew kəsût, covering) + Latin -ula, feminine diminutive suffix.]
chasubledetail of the 1617 painting The Miracles of St. Ignatius by Peter Paul Rubens