Μεγάρα

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 (Slater)

Μεγᾰρα daughter of Kreon of Thebes, wife of Herakles αὔξομεν ἔμπυρα χαλκοαρᾶν ὀκτὼ θανόντων τοὺς Μεγάρα τέκε οἱ Κρεοντὶς υἱούς (I. 4.64)

Μεγάρᾱ: эп.-ион. Μεγάρη (γᾰ) ἡ Мегара (дочь Креонта, жена Геракла) Hom., Pind., Eur.