Jastrow: קְלָאִילָּן

קְלָאִילָּן, קְלָא אִילָּן m. (קְלָא II a. אִילָּן) [ashes of a tree,] a vegetable blue dye, an imitation of the genuine purple-blue (תְּכֵלֶת); [Ar.: indigo, an adaptation of καλλάΐνον, callainum, Sachs, Beitr. I, p. 132]; woolen threads dyed with ḳ’la-illan. Tosef. Ab. Zar. VI (VII), 1 ק׳ שדשו בעצי וכ׳ ḳ’la-illan wool which has been stamped with wood of an ăsherah (אֲשֵׁרָה) must be burnt; others say, it is under the restriction of the law until it resumes its natural color (by washing &c.). Meïl. 13ᵃ הדש קלעילון בשדה וכ׳ Ar. (ed. קלעילין) he that stamps ḳ’laillan wool in a field belonging to the Temple. B. Kam. 93ᵇ בק׳ א׳ דלא עבר a ḳ. dye which cannot be removed with soap (v. צָפוֹן I). B. Mets. 61ᵇ מי שתולה ק׳ א׳ בבגדו וכ׳ he that attaches ḳ. threads to his garment and says, it is t’kheleth. Men. 41ᵇ טלית שכולה … מן ק׳ א׳ if a cloak is entirely of purple wool, any threads of a different color may be used as show-fringes, except ḳ. (because it may be mistaken for t’kheleth). Tosef. Kil. V, 26 ק׳ א׳ וכ׳ (Var. קלע אילן) threads of ḳ. (used in place of t’kheleth) … are not subject to the laws of mixed materials (כִּלְאַיִם).