vestment

noun

1. A robe, gown, or other article of clothing worn as an indication of office.

   “The priest wore a white vestment during the ceremony.”

   “Medieval paintings often depict bishops in ornate vestments.”

2. Any of the special articles of clothing worn by members of the clergy etc., especially a garment worn at the celebration of the Eucharist.

   “liturgical vestment”

   “ceremonial vestment”

   “ecclesiastical vestment”

3. (in-plural)Clothing.
4. (archaic)An article of clothing, especially an outer garment.