[*] 25. Predicate vocative. The vocative, not being a case proper, cannot take a predicate, but the predicate (nominative) adjective is occasionally attracted into the vocative. Clear cases are late: “ἀντὶ γὰρ ἐκλήθης Ἴμβρασε Παρθενίου”, CALLIM. fr. 213, Thou wast called (Imbrasus), O Imbrasus, instead of Parthenius. “ὄλβιε κοῦρε, γένοιο,” THEOCR. 17.66 ; Happy laddie, mayst thou prove (so). In the classical period the examples are only apparent, or, at most, the predicate may be picked out from the attribute which precedes the verb. AR. Av. 627. “ὦ φίλτατ᾽ ἐμοὶ πολὺ πρεσβυτῶν ἐξ ἐχθίστου μεταπίπτων” .
. AESCHYL. Pers. 674. “ὦ πολύκλαυτε θανὼν δυνάστα” .