Ἀβδηριτικόν

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)

Ἀβδηριτικόν: τό ирон. нечто абдеритское, т. е. глупость Cic.