ὦ
and ὤ, an exclamation, expressing surprise, joy, or pain, O! oh! with nominative, ὢ τάλας ἐγώ [[ 5th c.BC: Sophocles Tragicus “Ajax” 981, etc.; ὢ ἔβενος, ὢ χρυσός 3rd c.BC: Theocritus Poeta Bucolicus 15.123 ] Refs 5th c.BC+]: also with genitive, ὢ τῆς ἀναισχυντίας [[ 2nd c.AD: Lucianus Sophista “Pisc.” 5 ] Refs 2nd c.AD+]; with interrogative, ὤ, τί λέγει; [[ 5th-6th c.BC: Plato Philosophus “Protagoras” 309d ] Refs]; in the middle of a sentence, [[ 5th c.BC: Euripides Tragicus “Hippolytus” 362 (Lyric poetry), +others ] Refs 5th c.BC+]
__II with vocative, a mode of address, whether at the beginning of a sentence or in a parenthesis, ὦ Ἀχιλεῦ [[ 8th c.BC: Ilias Homerus Epicus “Illiad” 1.74, etc., especially in dialogue and Oratt., ἐβουλόμην, ὦ ἄνδρες, τὴν δύναμιν κτλ. Antipho. 5.1 ] Refs 8th c.BC+]; in invocations of the gods, ὦ Ζεῦ τε καὶ Γῆ καὶ πολισσοῦχοι θεοί [[ 4th-5th c.BC: Aeschylus Tragicus “Septem contra Thebas” 69, etc.; with _imperative_, ὦ χαῖρε [prev. author] “Ag.” 22, 5th c.BC: Sophocles Tragicus “Ajax” 91 ] Refs 5th c.BC+]; ὦ πρὸς θεῶν ὕπεικε [[[prev. work] 371, compare 4th c.BC: Demosthenes Orator 21.98 ] Refs 4th c.BC+]: sometimes following the Verb, [[ 5th c.BC: Euripides Tragicus “Troades” 335 (Lyric poetry)] Refs 5th c.BC+]; in different number from the vocative, προσέλθετ᾽, ὦ παῖ, πατρί [[ 5th c.BC: Sophocles Tragicus “Oedipus Coloneus” 1104, compare 1112, Scholia 5th-6th c.BC: Aristophanes Comicus “Plutus” 66. ] Refs 5th c.BC+]
__II.2 with nominative instead of vocative, ὦ δῐος αἰθήρ, ὦ φίλος, [[ 4th-5th c.BC: Aeschylus Tragicus “Prometheus Vinctus” 88, 545; ὦ γενναῖος 5th-6th c.BC: Plato Philosophus “Phaedrus” 227c; ὦ οὗτος Αἴας 5th c.BC: Sophocles Tragicus “Ajax” 89; ὦ οὗτος οὗτος Οἰδίπους [prev. author] “OC” 1627 ] Refs 5th c.BC+]; also οὗτος, ὦ σέ τοι (i.e. καλῶ) [[ 5th-6th c.BC: Aristophanes Comicus “Aves” 274. ] Refs 5th c.BC+]