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ὄγδοος

ógdoos

G3590 determiner

SILEX Entry

Root ὀκτ- eight, eighth (sequence)

Definition

Ordinal numeral meaning 'eighth in order or sequence.' Used to identify the position of an item, day, or person as the eighth in a series. In biblical and broader Greek usage, ὄγδοος designates the eighth day, month, generation, or other sequential designation, according to context. The fundamental sense is the ordinal value following the seventh.

Semantic Range

eighth in sequence, eighth day, eighth month, eighth generation, eighth part

Root / Etymology

Derived from the cardinal number ὀκτώ ('eight'), with the ordinal suffix -ος, forming 'eighth.'

Historical & Contextual Notes

Primarily an ordinal numeral, ὄγδοος appears in both classical and Hellenistic Greek with the same basic use: to specify something as the eighth in a sequence (e.g., the eighth day, the eighth month). In the Septuagint and New Testament, it most often refers to the eighth day (e.g., of a festival or ritual period), echoing usage from the Hebrew Bible. The use as an ordinal does not carry additional connotations beyond sequential order; attempts to find symbolic meaning in the 'eighth' (such as new beginnings) are interpretive and should not be conflated with the lexical meaning. English translations 'eighth' or 'the eighth' accurately reflect the Greek sense.

Original Strong's Gloss (1890)

from ὀκτώ; the eighth:--eighth.

Root Family

ὄγδοος (ogdoos) — eight, eighth (sequence)

Word Forms

3 distinct forms

SIDANCE Surface Transliteration Morphology Common SIBI-P1 Occurrences
G3590-01 ὀγδόῃ ogdoe DET DAT F SG eighth to the eighth 2
G3590-03 ὄγδοός ogdoos ADJ.P NOM M SG eighth eighth 2
G3590-02 ὄγδοον ogdoon ADJ.S ACC M SG eighth the eighth 1

Occurrences in Scripture

5 total occurrences

SIDANCE Reference Word Transliteration Morphology Common SIBI-P1
G3590-01 Luke 1:59 ὀγδόῃ ogdoe DET DAT F SG eighth to the eighth
G3590-01 Acts 7:8 ὀγδόῃ ogdoe DET DAT F SG eighth to the eighth
G3590-02 2 Peter 2:5 ὄγδοον ogdoon ADJ.S ACC M SG eighth the eighth
G3590-03 Revelation 17:11 ὄγδοός ogdoos ADJ.P NOM M SG eighth eighth
G3590-03 Revelation 21:20 ὄγδοος ogdoos ADJ.S NOM M SG eighth eighth
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