From Tolkien Gateway

Golug was a word from a language of the Orcs, whose only recorded use was during the later First Age, used to describe the Deep Elves (the Noldor). Its origins are unknown, but it may be related to the Sindarin name for this same people, Golodhrim.[1]

Portrayal in adaptations[edit | edit source]

2012-14: The Hobbit (film series):

Golug is used in Gundabad orkish. Much like in the books, it means "elf", but unlike in the books, a female form (golgi) and a plural (golgai) also exist[2]. It is also used in Black Speech.