Thank you all,

*Umlaut, noted *. Actually I know that it changes the pronunciation of a vowel, but my intention was to do something diferent and give the people in Iurmän a diferent way to write the "a" - writting it with the umlaut. I chose it because it was abolished from the portuguese language (as I'm playing the RPG with brazilians) and because I had the ideia to translate to english, and I dont know any word in english that uses umlaut.

Anyway, *noted*, I'll use it more carefully next time