ἰούorἰοῦ(v. sub fin.), Interj., a loud cry expressive of sorrow, joy, or surprise,
1. of grief of annoyance, usu. twice repeated, ἰοὺ ἰού
D. 19.209
;ἰ. ἰ. δύστηνοςorδύστηνε, S. Tr. 1143 , OT 1071 ;ἰ. ἰ. βοᾶν, κεκραγέναι, Ar. Nu. 543 , Pax 345 : c. gen., ἰ. ἰ. τῶν . . κιγκλίδων
Jul. Caes. 330d
: rarely once,φῦ(φεῦcodd.), ἰ. τῆς ἀσβόλου
Ar. Th. 245
; or thrice, Id. Pax 110 : with other Interj., ἰ. ἰ. ὢ ὢ κακά
A. Ag. 1214
; ἰ. ἰ. πόπαξ
Id. Eu. 143
(lyr.).
2. of joyful surprise,hallo!, hurrah!, Id. Ag. 25 , E. Cyc. 464 , 576 , Ar. Eq. 1096 , Pl. R. 432d , Grg. 499b , Smp. 223a . (Sch. Ar. Pax 345 , 316 says thatἰοὺ ἰούis of woe,ἰοῦ ἰοῦof joy: the rule is not observed in codd. In Att. Poets it sts. stands extra versum, A. Ag. 25 , Ar. Nu. 1 .)