Strong’s Greek
G2503 — iota
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
ἰῶτα
iota — pronounced ee-o'-tah
of Hebrew origin (the tenth letter of the Hebrew alphabet); "iota", the name of the eighth letter of the Greek alphabet, put (figuratively) for a very small part of anything:--jot.
1 occurrence in the KJV.
Matthew 5:18
For verily I say unto you, Till heaven and earth pass, one jot or one tittle shall in no wise pass from the law, till all be fulfilled.