Where does “nebenion” come from?

nebenion (English) comes from German neben, from Middle High German neben, from German in ebanī.

nebenion (English): Any ion near another one that is involved in...

Definitions

Step	Language	Word	Meaning
1	German	neben	next to, beside, alongside, adjacent to, near,...
2	Middle High German	neben	—
3	German	in ebanī	—

nebenion — Etymology, Origin & Word History | Etymology Explorer