tortum
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
tortum: i, n. torqueo,
I a cord, rope, Pac. ap. Non. 179, 16 (Trag. Fragm. v. 159 Rib.).