ἐνσπουδάζω
From LSJ
κακοὶ μάρτυρες ἀνθρώποισιν ὀφθαλμοὶ καὶ ὦτα βαρβάρους ψυχὰς ἐχόντων → eyes and ears are poor witnesses for men if their souls do not understand the language (Heraclitus Phil.: Fr. B 107; Testimonia: Fragment 16, line 6)
English (LSJ)
A employ oneself actively in, τῇ Σμύρνῃ Philostr.VS1.25.2,al.; πόλις ἐνσπουδάσαι ἀγαθή Lib.Or.11.268.
German (Pape)
[Seite 852] in Etwas, bei Etwas eifrig, thätig sein, Sp., wie Philostr.
Greek (Liddell-Scott)
ἐνσπουδάζω: σπουδάζω ἐν, ἐνσπουδάζων δὲ τῇ Σμύρνῃ τάδε αὐτὴν ὤνησε Φιλόστρ. 531.