G3590–ὄγδοος–ogdoos

And it came to pass, that on the eighth day they came to circumcise the child; and they called him Zacharias, after the name of his father.

ὀγδόῃ ogdoē “eighth”

And he gave him the covenant of circumcision. And so Abraham begat Isaac, and circumcised him the eighth day; and Isaac begat Jacob, and Jacob begat the twelve patriarchs.

ὀγδόῃ, ogdoē “eighth,”

And spared not the old world, but saved Noah the eighth person, a preacher of righteousness, bringing the flood upon the world of the ungodly;

ὄγδοον ogdoon “one of eight”

And the beast that was, and is not, even he is the eighth, and is of the seven, and goeth into perdition.

ὄγδοός ogdoos “an eighth”

The fifth, sardonyx; the sixth, sardius; the seventh, chrysolite; the eighth, beryl; the ninth, a topaz; the tenth, a chrysoprase; the eleventh, a jacinth; the twelfth, an amethyst.

ὄγδοος ogdoos “eighth”