Shiväisith

The native language of the Dark Elves. It is part of the Elven language group, being related to the languages spoked by the Light Elves and (reportedly) the Dwarves.

It is written using a runic script called Todjydheenil.

The Light Elves called it 'soft speech', due to a characteristic softening of hard consonents (stops) into fricatives.

Dictionary

197 Words.

Author's Note
Full credit goes to the incredible David J. Peterson, who was commission to create a language for the Dark Elves to speak in Thor: The Dark World, and really went above and beyond. Sources used are shivaisith.wordpress.com/, David Peterson's tumblr dedalvs.tumblr.com, and the Marvel Cinematic Universe wiki, which has done a great job of collating the information from the other sources. Further information about the grammar and structure of Shiväisith can be found in all those sources.