Lexical Definition

‎ὄγδοος‎ ógdoos (og'-do-os) eighth G:A
from ‎ὀκτώ‎

eighth.

Usage: 10 forms in 41 verses
Form Translated As     In Verse(s)
ὄγδοόσ an eighth Rev.17.11
ὄγδοοσ eighth Rev.21.20
ὄγδοον one of eight 2Pet.2.5
ὀγδόῃ eighth Luke.1.59Acts.7.8
όγδοοσ eighth LXX.1Kgs.6.38LXX.1Chr.12.12LXX.1Chr.24.10LXX.1Chr.25.15LXX.1Chr.26.5LXX.1Chr.27.11
όγδοον eighth LXX.Lev.25.22
ογδόω eighth LXX.1Kgs.12.32LXX.1Kgs.12.33LXX.1Kgs.16.29LXX.2Kgs.15.8LXX.2Kgs.24.12LXX.1Chr.27.11LXX.2Chr.34.3LXX.Jer.52.29LXX.Zech.1.1
ογδόησ eighth LXX.Ezek.43.27
ογδόη eighth LXX.Gen.17.14LXX.Lev.9.1LXX.Lev.12.3LXX.Lev.14.10LXX.Lev.14.23LXX.Lev.15.14LXX.Lev.15.29LXX.Lev.22.27LXX.Lev.23.36LXX.Lev.23.39LXX.Num.6.10LXX.Num.7.54LXX.Num.29.35LXX.1Kgs.8.66LXX.2Chr.7.9LXX.2Chr.29.17LXX.Neh.8.18
ογδοή eighth LXX.Gen.21.4LXX.Exod.22.30

Abbott-Smith

ὄγδοος, -η, -ον,
the eighth: Lk 1:59, Ac 7:3(LXX), Re 17:11 21:20; one of eight, with seven others (usually, in this sense, with αὐτός added, but cf. Plat., Legg., iii, 695c; Plut., Pelop., 13; II Mac 5:27): II Pe 2:5.†

Abbott-Smith References

Book Refs
Luke 1:59
Acts 7:3
2 Peter 2:5
Revelation 17:11 · 21:20

Liddell-Scott-Jones

ὄγδοος, η, ον,

eighth, [Refs 8th c.BC+]; ὀγδόη (i.e. ἡμέρα), ὀγδόῃ τῆς πρυτανείας [Refs 1st c.AD+] as disyllable, [Refs 8th c.BC+]