From Tolkien Gateway
Umuiyan was Tevildo's doorkeeper according to the early version of the legendarium in The Book of Lost Tales. After he fell asleep under the influence of Tinúviel's cape, Tevildo ordered him killed. His name in Gnomish was Gumniow.
- ↑ J.R.R. Tolkien, Christopher Tolkien (ed.), The Book of Lost Tales Part Two, "I. The Tale of Tinúviel", p. 24-25. Cf. footnote