deaggro

Etymology

From de- + aggro.

deaggro means to become no longer aggressive towards the player's character. Lexicurio rates it Sui generis — a strength score of 95 out of 100.

verb

To become no longer aggressive towards the player's character.“Egotistical mage (aren't they all?) intentionally frostbolts a spectator. While we watched, he ran to the doorway where they would emerge and died a quick death at their hands. Then they deaggro'd and went back upstairs.”
To cause (a non-player character) to become no longer aggressive towards the player's character.“Now I'm left with a mob that they have tagged, but with enough DoTs on it that I've got aggro. They usually want ME to have to kill the thing so that they can come back and loot it. I don't care how much extra time it takes me; in this scenario I ALWAYS run until I deaggro the the^([sic]) thing.”