The Greek verb aphaireō means to take away, remove, or cut off. It combines apo (away from) and haireō (to take). In the New Testament it appears in varied contexts: Peter cutting off the servant's ear at Gethsemane, God taking away Elizabeth's disgrace, and Revelation's solemn warning about removing words from the prophecy.
Hebrews 10:4: 'it is impossible for the blood of bulls and goats to take away (aphairein) sins.' The entire Old Covenant sacrificial system could not accomplish the removal of sin — it only pointed forward to the one sacrifice that could. Luke 10:42: Mary's choice 'will not be taken away from her.' What Christ gives, no one can remove.