Emily Dickinson Lexicon

RE-VENGE, v.t. [revenj'; Fr. revencher, venger; Sp. vengar; Port. vingar; L. vindex, vindico; It. vendicare. See Vindicate.]

1. To inflict pain or injury in return for an injury received. Note. This word and avenge were formerly used as synonymous, and it is so used in the common version of the Scripture, and applied to the Supreme Being. “O Lord … revenge me of my persecutors.” Jer. xv. In consequence of a distinction between avenge and revenge, which modern usage has introduced, the application of this word to the Supreme Being appears extremely harsh, irreverent and offensive. Revenge is now used in an ill sense, for the infliction of pain maliciously or illegally; avenge for inflicting just punishment.
2. According to modern usage, to inflict pain deliberately and maliciously, contrary to the laws of justice and humanity, in return for injury, pain or evil received; to wreak vengeance spitefully on one who injures or offends. We say, to revenge an injury or insult, or with the reciprocal pronoun, to revenge ourselves on an enemy or for an injury, that is, to take vengeance or satisfaction.
3. To vindicate by punishment of an enemy. The gods are just and will revenge our cause. – Dryden. [According to modern usage, avenge should here be substituted for revenge.]