אִיסְטְרִידָא, (Ispe. of סרד, cmp. סְרִיד, סְרָדָא &c.) net-work, esp. rigging, sail-yard, sails. [If the vers. אִיסְטְדִירָא, אִסְתְּדִירָא, v. Rabb. D. S. to Sabb. 111ᵇ note 2, be correct, it must be derived from סדר; cmp. b. h. סִדְרוֹן, סְדֵרָה.] Sabb. 111ᵇ קטרא דקטרי באי׳ the loop which they make when attaching the sail to the rigging. Ib. ודאי׳ גופה and the (permanent) knots in the rigging or ropes.