An Ahn-Vahr, also called Ahn Vahr, was a weapon developed by the Vulcan civilization. They were ceremonial daggers which were used in ancient times where it was part of the ritual form of suicide when the victim believed they had brought shame to their family. (TOS novel: Mindshadow) They were noted as being a double edged sword and kept by later era Vulcans in the central room as an ancient reminder of Vulcans warrior past. (TOS novel: Demons (novel))