προπροκυλίνδομαι
From LSJ
ἔγνω δὲ φώρ τε φῶρα καὶ λύκος λύκον → the thief knows the thief and the wolf knows the wolf, and thief knows thief and wolf his fellow wolf, set a thief to catch a thief
English (LSJ)
Pass.,
A keep rolling before another(as a suppliant), roll at his feet, c. gen., προπροκυλινδόμενος πατρὸς Διός Il.22.221; δεῦρο τόδ' ἵκετο πήματα πάσχων π. wandering from place to place, Od.17.525.