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

Merged thread:
Name requests

If anyone has a few moments, just wondering about my family names:

Piekarz: OK, that one's easy. Family from Lublin c. 1912.

Paściak: I've never gotten a good clue about this one

Zwierzyński: I probably should know this one, but don't.

Dombkiewicz: I'd assume the original spellling was Dąbkiewicz (something to do with an oak), but unsure.