G3590–ὄγδοος–ogdoos

It happened on the eighth day, that they came to circumcise the child; and they would have called him Zacharias, after the name of the father.

ὀγδόῃ ogdoē “eighth”

He gave him the covenant of circumcision. So Abraham became the father of Isaac, and circumcised him the eighth day. Isaac became the father of Jacob, and Jacob became the father of the twelve patriarchs.

ὀγδόῃ, ogdoē “eighth,”

and didn't spare the ancient world, but preserved Noah with seven others, a preacher of righteousness, when he brought a flood on the world of the ungodly;

ὄγδοον ogdoon “one of eight”

The beast that was, and is not, is himself also an eighth, and is of the seven; and he goes to destruction.

ὄγδοός ogdoos “an eighth”

the fifth, sardonyx; the sixth, sardius; the seventh, chrysolite; the eighth, beryl; the ninth, topaz; the tenth, chrysoprasus; the eleventh, jacinth; and the twelfth, amethyst.

ὄγδοος ogdoos “eighth”