Strong's #3768: karpac (pronounced kar-pas')
of foreign origin; byssus or fine vegetable wool: -green.
Brown-Driver-Briggs Hebrew Lexicon:
ּּ
karpas
1) cotton or fine linen
Part of Speech: noun masculine
Relation: of foreign origin
Usage:
This word is used 1 times:
Esther 1:6: "Where were white, green, and blue, hangings, fastened with cords of fine linen and purple to"