Quick Definition
σειρά, ᾶς, ἡ n.f. a chain
Strong's Definition
probably from 4951 through its congener eiro (to fasten; akin to 138); a chain (as binding or drawing)
KJV Usage: chain
UBS Dictionary of the Greek New Testament
noun, f. | -ᾶς
6.15 · Artifacts · Instruments Used in Binding and Fastening
chain (made of metal) or rope (made of fiber) a pliable instrument of binding In a number of languages a term for chain is simply metal rope. In other languages it may be described as linked rope in contrast with twisted rope, that is, a rope made out of some kind of fiber.
The phrase σειραῖς ζόφου (2PE 2:4) is admittedly a strange expression, and in some manuscripts this gave rise to a slight change in orthography (σιροῖς; see 1.59) with the resulting meaning being ‘in pits of darkness.’ If, however, one adopts the text ἀλλὰ σειραῖς ζόφου ταρταρώσας, it may be possible to interpret the entire expression as ‘but he chained them in the darkness of hell.’
UBS Dictionary of the Greek New Testament © United Bible Societies, licensed CC BY-SA 4.0.
Thayer's Greek Lexicon
σειρά, -ds, 7, (etpw, to fasten, bind together, [akin to Lat. sero, series, servus, ete.]; cf. Curtius § 518), fr. Hom. down; a. a line, a rope. b. a chain: σειραῖς ζόφου, [A.V. to chains of darkness, i. 6.1 to darkness as if to ‘chains, 2 Pet. ii. 4 RG [but Tr WH have σειροῖς, Τ, T σιροῖς, which see in their place}; μιᾷ ἁλύσει σκότους πάντες ἐδέθησαν, Sap. xvii. 17 (18).
Mounce Concise Greek Dictionary
σειρά seira 1x
a cord, rope, band; in NT a chain, 2 Pet. 2:4*
Abbott-Smith Greek Lexicon
σειρά, -ᾶς, ἡ
[in LXX: Jg 16:13, 14, 19 (מַחְלָפוֺת), Pr 5:22 (חֶבֶל) * ;]
a cord;
a chain (cf. Pr., l.c.): σειραὶ ζόφου, II Pe 2:4, Rec., R, mg. (v.s. σειρός).
a lock of hair (Jg, ll. c.).†
Moulton & Milligan — Vocabulary of the Greek NT
σειρά, “εᾷ chain,” is read in the TR of 2 Pet 24 σείραις ζόφου, but not elsewhere in the Greek Bible, except Judg 16%, Prov 5°?: cf. Sy// 588*°4 (c. B.c. 180) ἐκ THs σει]ρᾶς κρεμαμένων. See s.v. wepds. On Σειραί, the Cafenae of the Greek Church, see an art. by Nestle in Ax 7x. p. 218f. ?
Liddell-Scott-Jones — Greek-English Lexicon
σειρά (seira) — chain. σειρά, Ionic dialect σειρή, Doric dialect σηρά [Refs 4th c.AD+]: ἡ:— cord, rope, σειράς τ᾽ εὐπλέκτους [Refs 8th c.BC+]; σ. χρυσείη cord of gold, [LXX+8th c.BC+]; σειραὶ ζόφου variant in [NT]
2. trace (compare σειραφόρος), [Refs 2nd c.AD+]
3. cord or line with a noose, lasso, used by the Sagartians and Sarmatians, [Refs 5th c.BC+]
4. a bandage, [Refs 2nd c.AD+]; σ. μονομερής, διμερής, κτλ. [Refs 2nd c.AD+]
5. ἡ σ. τοῦ βίρρου,= cimussatio (probably edge, border), [Refs]
II. metaphorically of an animal's tail, [Refs 2nd c.BC+]
III. σειραὶ τῆς κεφαλῆς locks of hair, [LXX+2nd c.AD+]
IV. metaphorically, line, lineage, Tz.ad [Refs 8th c.BC+]
V. series, [Refs 5th c.AD+]
VI. plural, a disease of horses, [Refs]
VII. the front part of the perineum, [Refs 6th c.AD+]