ξεῖ
ὃ γὰρ βούλεται, τοῦθ' ἕκαστος καὶ οἴεται → what he wishes to be true, each person also believes to be true | what he wishes, each person also believes
English (LSJ)
τό, indecl., name of the letter ξ, Calliasap.Ath.10.453d, BCH 29.483 (Delos), Phld.P0.2.3 : later A ξῖ Luc.Jud.Voc.9, Sch.D.T.p.489 H., etc.; ξῦ (by assimilation to νῦ), f.l. in Luc. l. c. and AP9.385.14 (Steph. Gramm.).
Frisk Etymological English
(-εῖ = closed -ē)
Grammatical information: n.
Meaning: indecl. letter; Callias ap. Ath. 10, 453d).
Other forms: later ξῖ (Luc.)
Origin: LW [a loanword which is (probably) not of Pre-Greek origin] Semit.
Etymology: After πεῖ = Semit. pē. Schwyzer 140 w. lit.
Frisk Etymology German
ξεῖ: {kseĩ}
Forms: (-εῖ = geschlossenes -ē; Kallias ap. Ath. 10, 453d u.a.), später ξῖ (Luk. u. a.)
Grammar: n.
Meaning: indekl. Buchstabenname;
Etymology : nach πεῖ = semit. pē. Schwyzer 140 m. Lit.
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