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
ἀγυρίζω: συνάγω, «ἀγυρίζειν, συνάγειν, ἀγυρτάζειν», Ἡσύχ.