The word pita comes from Greek which means flat. The bread is also known as Arabic or Syrian bread. However, in Arabic this bread is called Khubz. Interestingly, Pita is the origin of the world Pizza.
A traditional homemade pita bread is round bread and has a pocket in the middle. While baking the bread in the oven, the steam puffs up the dough. This separates the top and bottom layers of the pita bread. If you cut the bread into two halves, it forms a pocket on each half portion of the bread.