παράγρᾰφ-ος · paragraph-os — LSJ
line or stroke drawn in the margin, with a dot over it, to mark the change of persons in a dialogue, or the corresponding parts of a chorus or parabasis, Heph. Poëm. p.73 C., Sch. Ar. Nu. 518, etc.; = παραγραφή I.1, Harp.