ἀναμάχεσθαι
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
Greek > English (Woodhouse Verbs Reversed)
(see also ἀναμάχομαι): fight again, renew the fight