sin

n., botan. carex vesicaria, Norse sen-gras, also called Lap-sko, from being used by the Lapps for ropes and cords; that this is an old custom is seen from Hkr. iii. 339—skútur tvær ok vóru sini bundnar, ok enginn saumr í, and sin-bundit skip (in the verse, l. c., of a boat made in Lapland); þat (the ship) var ok bundit sini, Ann. 1189 (Cod. Reg.)