ξεῖ

ξεῖ, τό, indecl.,

• name of the letter ξ, Callias ap. Ath. 10.453d, BCH 29.483 (Delos), Phld. Pο. 2.3: later ξῖ Luc. Jud.Voc. 9, Sch.D.T. p.489 H., etc.; ξῦ (by assimilation to νῦ), f.l. in Luc. l.c. and AP 9.385.14 (Steph. Gramm.).