The Collaborative International Dictionary of English v.0.48:
Reward \Re*ward"\, v. t. [imp. & p. p. Rewarded; p. pr. & vb.
n. Rewarding.] [OF. rewarder, another form of regarder, of
German origin. The original sense is, to look at, regard,
hence, to regard as worthy, give a reward to. See Ward,
To give in return, whether good or evil; -- commonly in a
good sense; to requite; to recompense; to repay; to
After the deed that is done, one doom shall reward,
Mercy or no mercy as truth will accord. --Piers
Thou hast rewarded me good, whereas I have rewarded
thee evil. --1 Sam. xxiv.
I will render vengeance to mine enemies, and will
reward them that hate me. --Deut. xxxii.
God rewards those that have made use of the single