Strong’s Greek
G1264 — diamachomai
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
διαμάχομαι
diamachomai — pronounced dee-am-akh'-om-ahee
from 1223 and 3164; to fight fiercely (in altercation):--strive. see GREEK for 1223 see GREEK for 3164
1 occurrence in the KJV.
Acts 23:9
And there arose a great cry: and the scribes that were of the Pharisees’ part arose, and strove, saying, We find no evil in this man: but if a spirit or an angel hath spoken to him, let us not fight against God.