2 sg. de εἰμί, être.
2 sg. prés. ind. ou impér. poét. de εἶμι, aller.

indecl., name of the letter ε, pronounced like the letter itself, Pl. Cra. 393d, 437a, al., Michel 832.46 (Samos, iv BC), etc. ; later pronounced ι, Hdn. Gr. 2.390; written ἶ, BGU 427.15.

εἰμί,
with various uses and significations, like the English verb to be.
__I. As substantive verb.
__1. Of persons and things, to be, exist: Act.17:28, Jhn.1:1, 8:58, 17:5, al; ὁ ὢν καὶ ὁ ἦν (for past ptcp.), Rev.1:4, 8, 4:8, 11:17, 16:5 (see Swete, Ap., 5; M, Pr., 228); τὰ (μὴ) ὄντα, Rom.4:17, 1Co.1:28.
__2. Of times, events, etc., to be, happen, take place: Mat.24:3, Mrk.14:2, 15:42, Luk.21:23, Jhn.4:6, 23, 5:10, al.
__3. to be present, be in a place, have come: Mat.2:13, 15, Mrk.1:45, 5:21, 15:40, Luk.1:80, 5:29, Jhn.7:30, al.; before εἰς, Mrk.2:1; before ἐκ, (ἐξ), Mat.1:20, 21:25, Mrk.11:30, Jhn.3:31, al.
__4. Impers., ἔστι, ἦν, etc.;
__(a) there is (Fr. il y a), was, etc.: Mat.16:28, Luk.16:19, Jhn.3:1, 5:2, Rom.3:10, al.; with dative (of the possessor; Bl., §37, 3), Mat.16:22, Luk.1:7, Jhn.18.10, Rom.9:2, al.; ἔστιν ὅς, ὅστις (chiefly in pl), Mat.16:28, 19:2, Mrk.9:1, al.;
__(b) with inf., = ἔξεστιν (which see), it is possible: Heb.9:5, 1Co.11:20, RV (but see ICC, in l.).
__II. As copula uniting subject and predicate.
__1. Expressing simply identity or equivalence: Mat.5:13, 14:15, Luk.1:18, 19, Jhn.1:1, 4:19, Rev.3:9, al. mult.
__2. Explicative, as in parable, figure, type, etc.: Mat.13:19, 1Co.9:2, 10:4, 11:25, Gal.4:24, Rev.17:15, al.; ταῦτ᾽ ἔστιν, Mat.27:46, Mrk.7:2, Rom.7:18 al.; ὅ ἐστιν, Mrk.3:17, Col.1:24, Heb.7:2, al.; akin to this is the sacramental usage: Mat.26:26-28, Mrk.14:22, 24, Luk.22:19, 1Co.11:24 (see ICC on Mk, I Co, ll. with; DB, iii, 148 f.).
__3. C. genitive: qual., etc., Mrk.5:42, Luk.3:23, 1Co.14:33, Heb.12:11, al.; part., 1Ti.1:20, 2Ti.1:15; poss., Mat.5:3, 10, Mrk.12:7, Luk.4:7; of service or partisanship, Rom.8:9, 1Co.1:12, 2Co.10:7, 2Ti.2:19.
__4. C. dative (BL, §37, 3): Act.1:8, 9:15, Rom.4:12, 1Co.1:18, 2:14, Rev.21:7, al.
__5. C. ptcp., as a periphrasis for the simple verb (Bl., §62, 1, 2; M, Pr., 225 ff.);
__(a) with ptcp. pf. (cl.): Mat.10:30, Luk.9:32, Jhn.3:24, Act.21:35, 1Co.15:19, al;
__(b) with ptcp. pr. (esp. in impf., as in Heb. and Aram.; Dalman, Words, 35 f.), Mat.7:29, Mrk.1:22, Luk.4:31, 14:1, Act.1:10, al. mult., id. for imper. (M, Pr., 180f., 182f.), with ellipsis of εἰμί, Rom.12:9, 10, Heb.13:5, al.;
__(with) with ptcp. aor. (cl), Luk.23:9.
__6. Seq. εἰς (cf. Heb. הָיָה לְ), a vernac. usage (M, Pr., 71): Mat.19:5, Mrk.10:8, Heb.8:10, al.
__7. C. adv.: Mat.19:20, Mrk.4:26, Luk.18:11, al.
__8. Ellipses;
__(a) of the copula (Bl., §30, 3): Mat.8:29, 24:32, Jhn.21:22, 23, Heb.6:4, al.;
__(b) of the predicate: ἐγώ εἰμί, Mat.14:27, Mrk.6:50, al.; absol. (cf. Deu.32:39; אֲנִי הוּא), Mrk.13:6, Jhn.4:26, al. (cf. ἄπ-, ἔν-, πάρ-, συμ-πάρ-, σύν-ειμι).
(AS)