vert (n.) Look up vert at
mid-15c., "the color green" (especially in heraldry), also "trees and brush bearing green leaves" (in forest law), from Anglo-French and Old French vert "foliage, greenery, green cloth," from Latin viridem, viridis "green" (see verdure).
vert (v.) Look up vert at
"to turn in some direction," 1570s, from Latin vertere (see versus). As a noun meaning "one who has left the Church of England" from 1864, short for convert (v.).