1296, "cinnabar, red dye," from O.Fr. vermeillon, from vermeil "bright-red," from L.L. vermiculus "a little worm," specifically, the cochineal insect from which crimson dyes were obtained (see
cochineal), in classical L., "larva of an insect, grub, maggot," dim. of vermis "worm" (see
worm).