שִׁירְטוּט, (שִׁרְטֵט) ruling, marking lines. Men. 32ᵇ צריכות ש׳ must be written on traced lines; Meg. 18ᵇ. Gitt. 6ᵇ בלא ש׳ without rules. Sabb. 75ᵇ (ref. to המולח והמעבד, ib. VII, 2) אפיק … ועייל ש׳ take out either of the two words, and insert (among the forbidden acts) the tracing of outlines on the hide before cutting.