ψύλλιον
From LSJ
τὸ κοῖλον τοῦ ποδὸς δεῖξαι → show the heels, show a clean pair of heels, show the hollow of the foot, run away
English (LSJ)
or ψυλλίον, τό,
A flea-wort, Plantago Psyllium, Dsc.4.69, Luc.Trag.157.
German (Pape)
[Seite 1402] od. ψυλλίον, τό, Flohkraut, Diosc.; plantagium psyllium od. cynops Linn.