τίς, τί , gen. τέο, τεῦ, pl. gen. τέων (τέων, ζ 119, Od. 13.200): interrog. pron., who?
what?
ἐς τί, how long?
Il. 5.465.— Rarely in
indirect questions, Il. 18.192, Od. 15.423, Od.
17.368.—Adv. τί,
why? how?