προσμανθάνω
From LSJ
ἀσκέειν, περὶ τὰ νουσήματα, δύο, ὠφελέειν, ἢ μὴ βλάπτειν → strive, with regard to diseases, for two things — to do good, or to do no harm | as to diseases, make a habit of two things — to help, or at least, to do no harm
English (LSJ)
A learn besides, A.Pr.697, Trag.Adesp.516a, Ar.V. 1208, Th.20: c. inf., ib.24.
German (Pape)
[Seite 772] (s. μανθάνω), dazu lernen; ἔςτ' ἂν καὶ τὰ λοιπὰ προσμάθῃς, Aesch. Prom. 699; Ar. Thesm. 20. 24; in späterer Prosa; προσμαθητέον, Xen. Oec. 13, 1.