Where does “asniz” come from?

asniz (Proto-Germanic) comes from Proto-Indo-European os(e)n- — summer, harvest-time, harvest.

Ancestry of “asniz”, step by step

Step	Language	Word	Meaning
1	Proto-Indo-European	os(e)n-	summer, harvest-time, harvest

asniz — Etymology, Origin & Word History | Etymology Explorer