A Mauli
Demon-Trolls (Q."Maulir") were an ancient kind of lesser Umaiar who took the Fana of exceptionally great and terrible Trolls, such as the kind that formed the bodyguard of the Balrogath in the First Age.
The Demon-Trolls may have been similar to or identical with the Ogres.
See:
Graugs:[]
In Middle-Earth: Shadow of Mordor and In Middle-Earth: Shadow of War, creatures named "Graugs", seemingly akin to Demons and Trolls appear as inhabitants of Mordor.