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
dreidrähtig, trilix. – Dreieck, trigonum (τρί-γωνον), rein lat. triangulum (als dreiwinklige Figur). – figura triquetra (als dreiseitige Figur).