Greek word
apolýtrōsis
ἀπολύτρωσις
What it means
ransom in full, i.e. riddance, or Christian salvation
(the act) ransom in full, i.e. (figuratively) riddance, or (specially) Christian salvation
Where it comes from
from a compound of apó (ἀπό) and lýtron (λύτρον)