It's kind of hard to imagine what it may be with out some kind of meat and with the letters you've given, and the only other i can think is Zupa Kartoflana, which is potato soup.
As far as i can remember, most all soups had some kind of meat especially back in the earlier times, swinina was a staple and of which was heavily used in the form of 'salt pork'. (You may remember eating salt pork fried with potatoes? I do, and get looked at funny with MANY of the 'depression foods' i still eat that my dad, uncle, and grandma used to cook when they were here, and make me try.)
If anything, try to remember what was with the soup and maybe we'll give it a shot that way.