Strong's 591 (ἀποδίδωμι)

deliver (again), give (again), (re-)pay(-ment be made), perform, recompense, render, requite, restore, reward, sell, yield

to give away, i.e. up, over, back, etc. (in various applications)

from G575 (ἀπό) and G1325 (δίδωμι);