with Anu Garg
adjective: Of a grayish blue or purple color.
From persus (dark blue), from Latin Persicus (Persian), from Persia, former name of Iran. Why this color is associated with Persia is not entirely clear. Earliest documented use: 1387.
“How much the amethyst ring on her right hand mirrored the fading perse color of the sky.”
Lisa Kusel; Hat Trick; Hyperion; 2005.