vestment

The trail begins in Latin with vestimentum, a noun meaning clothing or dress. The base is vestis, the Latin word for garment, used in everyday Roman life. By the late Republic and early Empire, vestimentum named ordinary attire rather than sacred gear. The religious sense came later through church usage.

In late antiquity, Christian writers adopted vestimentum for liturgical clothing. By the 4th and 5th centuries in Rome, the word could point to garments worn in worship. The specialized sense grew as church offices formalized clothing rules. Latin kept the term stable while its meaning narrowed.

Old French carried it forward as vestement, still a general word for clothing. Middle English borrowed it in the 13th century, first meaning a garment broadly. Over time, English narrowed it to clerical attire, especially in church contexts. The narrowing aligns with medieval church practice and vocabulary.

Modern English vestment names the garments of clergy and church officers. The secular sense faded, but the older root remains visible in vest and invest. The word still echoes the Latin idea of clothing even when used in a sacred setting. The story is a shift from the common to the ceremonial.