Raachern (ɹɑ:xɚn)

Wooden Gothteinnes by BJRP

"The Language of Angels":
It is said that the High God RWK sent an avatar, the Aerial God Trāne to the mortal plane that they might be gifted a universal tongue to help aid the cause of peace among the disparate races and nations of PÈRYL. This language became known as Raachern, derived from the name of the High God RWK.
Literally meaning “the Sky Language,” Raachern is the common language of Gruthe. Most travelers speak it. It is the first language of many thousands of people throughout the continent and the offical language of the Yellow Kingdoms of Hœm.