Golic Vulcan

Golic Vulcan is the Vulcan language that was heard in Star Trek: The Motion Picture, Star Trek: The Wrath of Khan, and other Star Trek movies.  Terms from this language were also heard in the original Star Trek television series, later series, and some books.

The name of the language derives from the fact that Golic Vulcan is descended from the ancient Vulcan language originally spoken in the Plains of Gol and surrounding areas.

More information is available at the Vulcan Language Institute Reclamation Project and in the expanded book version (lulu press; lodestone press), containing all of the material from the original website.  There is also a student study group at Yahoo and a secondary, general group about all of Marc Okrand's constructed languages, including Vulcan.