EricWojo - | 2 30 Aug 2016 #31Babcia and Dziadzia are both correct. Dziadzia is how a small child would say the more formal word (Dziadek) for Grandpa. It can also sometimes be used by adults in a more endearing way. Babciu and Dziadziu could be used when speaking to or addressing the grand parents directly by a child. Babci and Dziadzi or Dziadka are possessive nouns. Like Babci's cooking. Or were going to Grandma's. Jedziemy do babci. Obviously in Polish you wouldn't use the apostrophe s.