δαί, colloquial form ofδή,used after interrogatives, to express wonder or curiosity,
A.
τίς δ. ὅμιλος ὅδ' ἔπλετο;
Od. 1.225
; ποῦ δ. νηῦς ἕστηκε;
24.299
, cf. A.D. Synt. 78.2 (but wrongly read by Aristarch. for δ' αἱ
Il. 10.408
): freq. in Com., τί δ. σὺ . . πεποίηκας;
Ar. Eq. 351
; mostly in a separate clause, τίδ.; what? how?
Pherecr. 93
, Ar. Eq. 171 , al.; τί δ. σύ;
Id. Av. 136
; πῶς δ.;
Id. V. 1212
; dub. l. in A. Pr. 933 , Ch. 900 , S. Ant. 318 , but prob. to be read E. Med. 1012 , Ion 275 , al.: freq. in codd. of Pl. , but prob. f.l. for δέ , as in Ar. Ach. 912 .