Strong’s Greek
G633 — aponipto
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
ἀπονίπτω
aponipto — pronounced ap-on-ip'-to
from 575 and 3538; to wash off (reflexively, one's own hands symbolically):--wash. see GREEK for 575 see GREEK for 3538
1 occurrence in the KJV.
Matthew 27:24
When Pilate saw that he could prevail nothing, but that rather a tumult was made, he took water, and washed his hands before the multitude, saying, I am innocent of the blood of this just person: see ye to it.