Dziadzi - help me with spelling/pronunciation

Okay, so I'm polish and I've always called my grandfather jaji....well at least thats my poor atempt on how to spell it. I think it is spelled like dziadek but I don't pronounce the k, is it suppose to be silent? My mom has no idea, 'cause she's only like 25% while my dad is 100% and he thinks it's dzadzie, but then again, he's lived in america all his life and not so sure. Please help!

dziadzi (jajee) or dziadek which is a granfather as well - no - the K in dziadek is not supossed to be silent

I've got a babci and a dziadzi and you've got it right, ja-jee.