ποταμηπόρος
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)
ον,
A crossing rivers, Opp.C.2.178; going to the river, ib.4.84.
German (Pape)
[Seite 688] über den Fluß setzend, Opp. Cyn. 2, 178. 4, 84.
Greek (Liddell-Scott)
ποτᾰμηπόρος: -ον, ὁ διαβαίνων ποταμούς, Ὀππ. Κυν. 2. 178., 4 84.