לַכָּא, (לְכַךְ; cmp. Arab. lakka, Lat. lacca) juice of a plant, used for dyeing. Pes. 42ᵇ דעבדי ליה לל׳ Ms. M. margin (ed. דצבעי בהו לבא) (bran-water) which they use as a priming for lacca. Ḥull. 28ᵃ דקבעי … לל׳ its blood is used to be mixed with lacca