6 letters · 11 points in Scrabble
noun tuft of strong filaments by which e.g. a mussel makes itself fast to a fixed surface
originFrom New Latin byssus (“sea silk”), from Latin byssus (“fine cotton or cotton stuff, silk”), from Ancient Greek βύσσος (bússos, “a very fine yellowish flax and the linen woven from it”), from Hebrew בּוּץ (búts), Aramaic בּוּצָא (būṣā).
Etymology from Wiktionary, CC BY-SA 3.0