Umbraen Elvish

The most commonly spoken language in Aman-ya is Umbraen Elvish, the language of the Sumraki-Ashaī as it developed since their descent do these caverns.

The Vulgar Tongue of Styx, Undercommon uses many loanwords from the Umbraen Elvish language.

Umbraen Elvish developed from Old Church Umbraen (which is still commonly spoken by members of the Church of Serkatha) which in turn descends from Ancient Umbraen Elvish which stems from proto-Elvish.