Strong’s Greek
G4475 — rhapisma
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
ῥάπισμα
rhapisma — pronounced hrap'-is-mah
from 4474; a slap:--(+ strike with the) palm of the hand, smite with the hand. see GREEK for 4474
3 occurrences in the KJV.
Mark 14:65
And some began to spit on him, and to cover his face, and to buffet him, and to say unto him, Prophesy: and the servants did strike him with the palms of their hands.
John 18:22
And when he had thus spoken, one of the officers which stood by struck Jesus with the palm of his hand, saying, Answerest thou the high priest so?
John 19:3
And said, Hail, King of the Jews! and they smote him with their hands.