Λυδίας

From LSJ

ἀγεωμέτρητος μηδεὶς εἰσίτω → no one ignorant of geometry may enter, let no one ignorant of geometry enter, let no one ignorant of geometry come in

Source

Russian (Dvoretsky)

Λῡδίας: ου ὁ Лидий (река в Македонии) Eur.