The surname of Túrin taken in defiance of the curse placed upon Húrin and all of his kin by Morgoth. It means "Master of Fate" or "Master of Doom".

Túrin took this name after discovering that Finduilas was indeed dead because of the trickery of Glaurung. After this discovery, he lay down and fell into a darkness filled with grief that was near death.

He was brought to Ephel Brandir where the remnant of the People of Haleth dwelt. He was there healed by Brandir son of Handir. After his healing, Túrin cast off his darkness and grew strong again and vowed to put his past behind him. So it was that he took the name of Turambar believing that he could defy the doom laid upon him by Morgoth.
Encyclopedia entry originally written by Nienna-of-the-Valar