Strong’s Greek
G2508 — kathairo
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
καθαίρω
kathairo — pronounced kath-ah'-ee-ro
from 2513; to cleanse, i.e. (specially) to prune; figuratively, to expiate:--purge. see GREEK for 2513
2 occurrences in the KJV.
John 15:2
Every branch in me that beareth not fruit he taketh away: and every branch that beareth fruit, he purgeth it, that it may bring forth more fruit.
Hebrews 10:2
For then would they not have ceased to be offered? because that the worshippers once purged should have had no more conscience of sins.