orarium

The term "orarium" refers to a liturgical vestment worn by a deacon in the Eastern Church. It is a stole that hangs over the left shoulder. The word "orarium" has origins in Middle Greek and Late Latin, ultimately stemming from the Latin word "orarium," which itself is related to "os," meaning mouth.1

This vestment is similar in concept to the maniple used in Roman Catholicism, which is a narrow silk band worn over the left forearm. While the maniple has largely fallen out of liturgical use after the reforms of the Second Vatican Council, it is still sometimes used for traditional Latin masses. The maniple, also a symbol of work and service, likely evolved from a Roman handkerchief or ceremonial napkin.2