There is a book called "magid mesharim" written by Maran Bet Yosef in Aramaic through the exact words of an angel. My issue with this is that we learned from some Gemaras (Shabbat 12b is one) that angels don't know Aramaic. How did the angel know Aramaic?
The Tosafot there (Shabbat 12b) writes that only the angel Gavriel knows Aramaic. This is probably the angel that taught Maran.
EDIT: I found a Ros"h in Berachot 2:2 that says it's not that they don't understand Aramaic, it simply is not favorable in their eyes. The Maadanei Yom Tov (note 7) ask a question that I won't bring up, but I will bring down what he says at the end Arabic would fall into the same category as Aramaic.