Vine's Expository Dictionary: View Entry
ὀκτώ oktṓ, ok-to'; a primary numeral; "eight":—eight.
The KJV translates Strong's G3638 in the following manner: eight (6x), eighteen (with G1176) (with G2532) (3x).
eight
Strong's Number G3638 matches the Greek ὀκτώ (oktō),
which occurs 9 times in 9 verses
in the TR Greek.