Where does “Adamiak” come from?

Adamiak (Polish) comes from Polish Adam, from Hebrew אָדָם, from Hebrew אדמה — earth, soil, land.

Ancestry of “Adamiak”, step by step

Step	Language	Word	Meaning
1	Polish	Adam	—
2	Hebrew	אָדָם	earth, man, soil, light brown; Adam; man, person
3	Hebrew	אדמה	earth, soil, land

Adamiak — Etymology, Origin & Word History | Etymology Explorer