Tyelkormo was the mother-name of the third son of Fëanor. It means "Hasty-riser" and it is a reference to his quick temper.
In Middle-earth, his name was Sindarinized as Celegorm.
The name is composed of three elements: tyelk- "swift" + óre "rising" + -mo "-er"
- ↑ J.R.R. Tolkien, Christopher Tolkien (ed.), The Peoples of Middle-earth, "The Shibboleth of Fëanor", The names of the Sons of Fëanor with the legend of the fate of Amrod, p. 353