Strong’s Greek
G1964 — epiorkeo
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
ἐπιορκέω
epiorkeo — pronounced ep-ee-or-keh'-o
from 1965; to commit perjury:--forswear self. see GREEK for 1965
2 occurrences in the KJV.
Matthew 5:33
Again, ye have heard that it hath been said by them of old time, Thou shalt not forswear thyself, but shalt perform unto the Lord thine oaths:
Matthew 5:33
Again, ye have heard that it hath been said by them of old time, Thou shalt not forswear thyself, but shalt perform unto the Lord thine oaths: