παρατρέφω · paratrephō — LSJ
feed beside, with, maintain in addition, to be brought up with, live with, feed at anotherʼs expense
feed beside or with one, τὸν βουλόμενον Timocl. 9.2; maintain in addition, Arist. Ath. 62.2, PSI 6.571.15 (iii B. C.); ἵππους, κύνας, Plu. Vit. aer. al. 2.830c, cf. Ael. NA 3.1 (Pass.) :—Pass., of slaves, etc., to be brought up with the children, Posidon. 36 J., Harp. s.v. μόθωνας ; οὐχ αὑτῷ παρετράφην ἀλλά σοι Men. l.c.; of concubines, live with the wives, Plu. Art. 27; of men and animals, feed at anotherʼs expense, D. 19.200, Men. 244, Plu. Lib.educ. 2.13c.
2 bring up alike
bring up alike, ἀμφοτέρους ἴσους ἐκ παίδων παραθρέψαι Hdn. 3.15.5.
3 to be educated
Pass., to be educated, ἐν φιλοσοφία Plu. Aud. 2.37e, Coniug. 138c.