συσχολάζω
From LSJ
Michael Apostolius Paroemiographus, Paroemiae
English (LSJ)
A spend one's leisure with others: to be a fellow-pupil in philosophy, study together or with, οἱ -άζοντες fellow-students, Phld.Lib.p.35 O., al., cf. Plu.Lyc.16, Alc.24; Ἀριστάρχῳ -εσχολᾰκώς Phld.Acad.Ind.p.101 M.; τοῖς φιλοσόφοις Ath.4.168a, cf. Plu. Alex.65, Luc.Jud.Voc.8, etc.; Χρυσίππῳ παρὰ Κλεάνθει Ath.8.354 e.