αργυροφεγγής
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
Greek Monolingual
-ές ἀργυροφεγγής (-οῦς), -ές (AM)
αυτός που φέγγει σαν άργυρος, που έχει ασημένια λαμπεράδα.
[ΕΤΥΜΟΛ. < άργυρος + -φεγγής < φέγγος.