Dictionary entry

βύσσος

G. Abbott-Smith's A Manual Greek Lexicon of the New Testament

βύσσος, -οῦ, ἡ (cf. Heb. בּוּץ),

[in LXX chiefly for שֵׁשׁ, בּוּץ;]

byssus, a fine species of flax, also the linen made from it: Lk 16:19.†