Where does “Allach” come from?

Allach (Polish) comes from Arabic الله, from Arabic الٱِلٰه, from Arabic إله, from Proto-Semitic ʔil- — deity, god.

Ancestry of “Allach”, step by step

StepLanguageWordMeaning
1ArabicاللهAllah; God; god
2ArabicالٱِلٰهGod
3Arabicإلهgod, deity
4Proto-Semiticʔil-deity, god
Every word from Proto-Semitic ʔil- →Every word from Arabic إله →Every word from Arabic الٱِلٰه →