θυγατριδοῦς
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)
οῦ, ὁ,
A daughter's son, grandson, Is.8.17, Arist.Fr.473, Ph.2.82,425, OGI529.23 (Sebastopolis): acc. -δῆ, as though from nom. -δεύς, ib. 377.5 (Smyrna, i A.D.):—Ion. θῠγατρ-ιδέος Hdt.5.67, 69.