Strong’s Greek
G1282 — diaprio
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
διαπρίω
diaprio — pronounced dee-ap-ree'-o
from 1223 and the base of 4249; to saw asunder, i.e. (figuratively) to exasperate:--cut (to the heart). see GREEK for 1223 see GREEK for 4249
2 occurrences in the KJV.
Acts 5:33
When they heard that, they were cut to the heart, and took counsel to slay them.
Acts 7:54
When they heard these things, they were cut to the heart, and they gnashed on him with their teeth.