1. Why is ain alif used at the start of 'a'ila, immediate family? Why not alif with hamza on top? Surely they sound the same? Is it because it is a more ancient word? Or because it is a less ancient word?
2. Which words apart from herdha and allah have unusual markings? Again, is it because they are the most ancient words?
I will add the Arabic when I am at my laptop.