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
Met., quarrel: P. and V. διαφορά, ἡ; see quarrel.
reflect that the city will fall a prey to internal friction: P. νομίσατε… τὴν πόλιν… τρίψεσθαι αὐτὴν περὶ αὑτήν (Thuc. 6, 18).