κοπίς
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
English (LSJ)
(B), ίδος, ἡ, (κόπτω)
A chopper, cleaver, Hermipp.46 (anap.), Ar. Fr.138, S.Fr.894, D.S.12.24, etc.; νερτέρων κ., prob. for κόνις, S.Ant. 602 (lyr.); broad curved knife, used by the Thessalians, E.El.837; by Orientals, X.Cyr.2.1.9, 6.2.10: as Adj., κ. μάχαιρα E.Cyc.241: metaph., of Phocion, ἡ τῶν ἐμῶν λόγων κ. D.ap.Plu.Phoc.5. 2κόπις (parox.) κέντροιο κ. sting of a scorpion, Nic.Th.780; cf. κόπιες· κέντρα ὀρνίθ<ε>ια, Hsch. II among the Lacedaemonians, feast given on certain festivals to strangers, Cratin.164, Eup.138, Philyll.16.