κηκίς

A. anything gushing or bubbling forth, ooze, of fat or juices drawn forth by fire, κηκὶς πισσήρης φλογός A. Ch. 268; κ. φόνου bubbling blood, ib.1012; μυδῶσα κ. juices drawn by fire from a sacrificial victim, S. Ant. 1008; κ. πορφύρας dye of the murex, A. Ag. 960.

II. oak-gall, Hp. Nat.Mul. 32, al., Thphr. HP 1.2.1, 3.8.6, Dsc. 1.107; the dye made therefrom, D. 27.10, 43; used as ink, Eust. 955.64; esp. invisible ink, Ph. Bel. 102.32.