Strong’s Greek
G4917 — sunthlao
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
συνθλάω
sunthlao — pronounced soon-thlah'-o
from 4862 and thlao (to crush); to dash together, i.e. shatter:--break. see GREEK for 4862
2 occurrences in the KJV.
Matthew 21:44
And whosoever shall fall on this stone shall be broken: but on whomsoever it shall fall, it will grind him to powder.
Luke 20:18
Whosoever shall fall upon that stone shall be broken; but on whomsoever it shall fall, it will grind him to powder.