Ashean

Language rarely spoken by some cultists of the Ashe Followers.
Ashean is thought to be the ancient, legendary language spoken by the god they believe in, Ashe. As such, when making prayers, they would speak them in Ashean (usually). Sometimes they forget to, instead talking in their normal language, which isnt considered on offense by Ashe Follower culture but is seen as making the whole prayer largely useless (as Ashe cant understand any language other than Ashean).
Furthermore, use of this language can be considered offensive when they are not praying. For example, talking to other mortal cultists. This is because they are supposed to be modest, but talking in Ashean implies that the person in question is equal to Ashe in power and intelligence. It is also difficult for most mortals to speak anyway due to a large variation in sounds which makes pronunciation of most words difficult.
Rarely, this language can be seen written on some items or structures of the Ashe Followers. Ashean has a written language. This is only done however, by large groups when they have the approval from Ashe via prayer. (Ashe doesnt really exist, they make up his response but still). This written language is not understood by most, but is only written on the most important artifacts and largest structures the Ashe Followers have built. The original copy of the The Ashe Text is written in Ashean, much to the curiosity of others. This document is so sacred that they have maintained it to this day and is still easily usable. No other copes of The Ashe Text are written in Ashean.