Goblins

Goblins, also known as Gongs, are the Orcs of the Hills, an archaic breed of Orc seen by some Scholars as "proto-orcs".

The term Goblin usually refers to the smaller Gongs while the greater Gongs are known as Hobgoblins.

most lesser orcs or Snagas of the later Ages descent from the Gongs while the great Gongsof the first Age were filled with Morgoth´s will and were unable to survive without their master.The Greater Orcs of Barad dûr who fought for Sauron at the Battle of the Gladden fields however were filled with Sauron´s will as the Gongs were filled with Morgoth´s will so one breed of Hobgoblin may have survived as servants of Sauron.The greater Orcs who appeared before the breeding of the Uruk-Hai may have -at least partially- been descendants of these Hobgoblins.