in'alah was used by Arcanist Thalyssra when you were exploring Suramar hideout. And from context it means "light on" since after this lights went on. What sounds similar is: ishnu-alah and ishnu-dal-dieb both being Darnassian - language of Night Elves (meaning "good fortune to you" and "good fortune to your family" respectively). This is very similar to arabic ansha allah (god willing) but I digress.
Most common Draenei language examples are: dioniss aca (safe journey) and krona ki cristorr (the Legion will fall); which (for me at least) sound grekish.