λέξις · lexis — LSJ
speech, opp. ᾠδή, Pl. Lg. 816d; λ. ἢ πρᾶξις speech or action, Id. R. 396c; ὁ τρόπος τῆς λ. ib. 400d; τὰ λέξει δηλούμενα orders given by word of mouth, Arr. Tact. 27.2.
diction, style, ἡ ἐνθάδε λ. the style used here (in courts of justice), Pl. Ap. 17d; Μούσης λ. poetical diction, Id. Lg. 795e, cf. Arist. Rh. 1410b28, Po. 1450b13, etc.; περὶ Λέξεως, title of work by Ephorus, Theon Prog. 2.
a single word or phrase, Arist. Rh. 1406b1, Epicur. Nat. 28p.4V., al. (pl.), D.T. 633.31, Plb. 2.22.1, etc.; even a meaningless word, such as βλίτυρι, Diog. Stoic. 3.213; ταῖς λ. κέχρηται ταῖς αὐταῖς Plb. 6.46.10; αὐταῖς λέξεσι or κατὰ λέξιν word for word, D.H. Pomp. 2, Plu. Herod. 2.869d, Ath. 11.493d, D.L. 2.113; later ἐπὶ λέξεως PLond. 5.1713.14 (vi A.D.), Vit.Arist. p.438 Rose, etc.; collectively, κρατῶ καὶ τῆς λ. the very words, Ath. 7.275b, cf. Epicur. Nat. 28p.15V., Gal. 12.403.
κατὰ λέξιν as the phrase goes, AP 11.140 (Lucill.); παρὰ λέξιν incorrectly, Cic. Att. 16.4.1.
Gramm., a word peculiar in form or signification: hence λέξεις is the older term for a glossary, Ῥοδιακαὶ λέξεις a glossary of Rhodian phrases, Ath. 11.485e; cf. γλῶσσα II.2.
text of an author, opp. exegesis, Asp. in EN 122.27, Arr. Epict. 3.21.7, Dam. Pr. 165, 169.