μηνιαίως

From LSJ

τὸ κοῖλον τοῦ ποδὸς δεῖξαιshow the heels, show a clean pair of heels, show the hollow of the foot, run away

Source

Greek (Liddell-Scott)

μηνιαίως: Ἐπίρρ. = κατὰ μῆνα, Πάπυρ. Βερολ. 363, 9.