Only a little... I've got a working knowledge of Arabic from where I grew up, but I'm planning to learn more sooner or later.
I know the basics... can have a small conversation with most Arabic people. And of course, a few choice swearwords here and there, because nothing is more fun than insulting people to their face when they can't tell if you did or not.
Enta homar. 
It's not that impressive, it's just another language, although it is harder than French and English to learn.
Anyway, back on topic. I'm on disc 2 of this game now... it's absolutely gorgeous, and the battle system is much deeper than I thought it would be. What I love most about this game is the obvious imagination that went into it... some of the weirdest dungeons and enemies I've ever seen. It's like playing through a fairytale spun by an insane lunatic. Granted, some of the pieces are cliche, but their presentation definitely isn't, and that more than makes up for it for me.