קוֹלְמוֹס, (calamus) reed, writing pen. Sabb. 92ᵇ שנים … בק׳ כותבין if two take hold … of a pen and write; Tosef. ib. IX (X), 10; Sifra Vayiḳra, Ḥob., ch. IX, Par. 7. Sabb. I, 3 בקוֹלְמוֹסוֹ; Y. ib. 3ᵇ, v. לִבְלָר. Taan. 20ᵇ לפיכך זכה קנה … ק׳ וכ׳ therefore (because of its yielding nature) the reed was privileged to supply the pen with which to write the Torah &c. Tanḥ. Ki Thissa 37 עד שמשה … נשתייר בק׳ וכ׳ when Moses wrote the Torah, something (of the fire-ink) was left in the pen, and he passed it over his head &c. Pes. 118ᵇ (ref. to Ps. LXVIII, 31) געור בחיה … בק׳ אחד rebuke the beast (Rome) all of whose deeds are written down with the same pen (of tyranny); a. fr.—Ḥull. 30ᵇ שחיטה העשויה כק׳ a cut (of the animal’s throat) shaped like the cut of a writing reed (slanting).—Pl. קוֹלְמוֹסִים, קוֹלְמוֹסִין. Y. Sabb. XII, 13ᶜ bot. כמין ק׳ היו עשויין the boards were cut like pens (thinner and slanting on top). Gen. R. s. 58, a. e. כמה ק׳ משתברין how many pens were broken &c., v. דְּיוֹ. Tosef. Kel. B. Bath. VII, 12 הק׳ metal pens (styluses; Kel. XII, 8 sing.). Sabb. 11ᵃ אם יהיו … ואנמים ק׳ וכ׳ if all seas were ink, and all reeds pens &c.; Ab. d’R. N. ch. XXV קלְמוֹסִים (ed. Schechter קול׳, Var. קוּלְמְסִין).