1. to pray to a god, with dative, (Iliad by Homer):—;with accusative to invoke , (Odyssey by Homer)

2. with accusative et infinitive to pray that , (Iliad by Homer):—;with infinitive only, to pray to be so and so, (Odyssey by Homer)

3. to pray something for one, τί τιν; sometimes in good sense, ἀρ. τινι ἀγαθά (Herdotus Historicus); but usually in bad, to imprecate upon one, ἀρὰς ἀρ. τινι (Sophocles Tragicus), etc.; without an accusative, ἀρᾶσθαί τινι to curse one, (Euripides)

4. with infinitive future to vow that one will or would , ἠρήσατο ῥέξειν (Iliad by Homer) (ML)