Strong's #3638: oktos (pronounced ok-to')

a primary numeral; "eight":--eight.

Thayer's Greek Lexicon:

̓́

oktō

1) eight

Part of Speech: noun indeclinable

Relation: a primary numeral

Usage:

This word is used 9 times:

 

Luke 2:21: "And when eight days were accomplished for the circumcising of the child,"
Luke 9:28: "And it came to pass about eight days after these sayings,"
Luke 13:4: "Or those eighteen, upon whom the"
Luke 13:11: "which had a spirit of infirmity eighteen years, and"
Luke 13:16: "Satan hath bound, lo, these eighteen years, be loosed"
John 5:5: "which had an infirmity thirty and eight years."
John 20:26: "And after eight days again his disciples were"
Acts 9:33: "named Aeneas, which had kept his bed eight years,"
1 Peter 3:20: "wherein few, that is, eight souls were saved by"