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
arctĭcus: a, um, adj., = ἀρκτικός (pertaining to the constellation of the Bear, ἄρκτος; hence),
I northern, arctic: circulus, Hyg. Astr. 1, 6.