fun fact! Orcs in TES are elves.

at some point in history a group of aldmer and their leader trinamac did something boethiah (a deadric prince) was not a fan of. So trinemac got eaten, turned into a deadric prince malacath, and all his followers were turned into orsimer (proper names of all elven races all end with -mer, altmer, bosmer, dunmer), that is orcs