Wiktionary
aggriever
n. One who aggrieves.
Usage examples of "aggriever".
On any given day, the aggrieved and the aggriever could stand in each other’s clothes.
On any given day, the aggrieved and the aggriever could stand in each other's clothes.
Even our courts of law are in essence gladiatorial, with the aggrieved taking arms against the aggriever, figuratively.