Strong’s Greek
G660 — apotinasso
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
ἀποτινάσσω
apotinasso — pronounced ap-ot-in-as'-so
from 575 and tinasso (to jostle); to brush off:--shake off. see GREEK for 575
1 occurrence in the KJV.
Luke 9:5
And whosoever will not receive you, when ye go out of that city, shake off the very dust from your feet for a testimony against them.