Nirak

From Memory Alpha, the free Star Trek reference.

Nirak was a Vulcan soldier who lived before the Time of Awakening. He was standing watch over the gates of Gol when he mistakenly thought that an approaching army was a sandstorm, and failed to send a warning. The army destroyed the city, but they spared Nirak's life. His name now means "fool" in the Vulcan language. (ENT: "Kir'Shara")