Genealogy / THE MEANING AND RESEARCH OF MY POLISH LAST NAME, SURNAME? [4500]

Stepenaskie - My grandfather's last name on an American census form. My dad told me the in the Polish Catholic school he went too, he spelled the last name Szczepanowski. I can't seem to trace the family back to Poland though, still looking though, would appreciate any help on the meaning! I looked through this thread, the closest I found was Szczepanski. Thanks for your help!