Well - I am Greek myself, I really like frictional games and all their products, but I don't really know how one explains the Greek letters. PATHOS actually means "PASSION" and SOMA itself is the word for "body". There has been a very weird roumor on the internet which says that one of the developers might have a Greek parent, or even grandparent and so these names were put. I don't really know though, every Greek frictional games' fan is so excited about this because Greece is so low on the world country ranking in importance AND economy levels.