γράφειν καὶ συσσημαίνεσθαι
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)
sign and witness its being sealed, sign a document and witness its being sealed
