The Collaborative International Dictionary of English v.0.48:
Vengeance \Venge"ance\, n. [F. vengeance, fr. venger to avenge,
L. vindicare to lay claim to, defend, avenge, fr. vindex a
claimant, defender, avenger, the first part of which is of
uncertain origin, and the last part akin to dicere to say.
See Diction, and cf. Avenge, Revenge, Vindicate.]
1. Punishment inflicted in return for an injury or an
offense; retribution; -- often, in a bad sense, passionate
or unrestrained revenge.
To me belongeth vengeance and recompense. --Deut.
To execute fierce vengeance on his foes. --Milton.
2. Harm; mischief. [Obs.] --Shak.
What a vengeance, or What the vengeance, what! --
emphatically. [Obs.] "But what a vengeance makes thee
fly!" --Hudibras. "What the vengeance! Could he not speak
'em fair?" --Shak.
With a vengeance,
(a) with great violence; as, to strike with a vengeance.
(b) with even greater intensity; as, to return one's
insult with a vengeance.
[1913 Webster + PJC]