profitably
From LSJ
πολλάκις δοκεῖ τὸ φυλάξαι τἀγαθὰ τοῦ κτήσασθαι χαλεπώτερον εἶναι → it often proves harder to keep than to win prosperity | it is often harder for men to keep the good they have, than it was to obtain it
English > Greek (Woodhouse)
adverb
beneficially: P. συμφόρως, χρησίμως, ὠφελίμως, συμφερόντως.
conveniently: P. and V. προὔργου.