Where does “nonselenium” come from?

nonselenium (English) comes from English non, from French non, from Old French non, from Latin nōn, from Old Latin noenum, from Proto-Indo-European óynos — one; single.

nonselenium (English): Not of or pertaining to selenium

Definitions

Not of or pertaining to selenium

Ancestry of “nonselenium”, step by step

nonselenium traces back through two separate lines of ancestry.

via English non

Step	Language	Word	Meaning
1	English	non	Obsolete form of none
2	French	non	no; not; a no, a negative response
3	Old French	non	no; not; Alternative form of nom
4	Latin	nōn	not
5	Old Latin	noenum	—
6	Proto-Indo-European	óynos	one; single

via English selenium

Step	Language	Word	Meaning
1	English	selenium	A nonmetallic chemical element with an atomic...
2	French	sélénium	selenium
3	Ancient Greek	σελήνη	moon; month; a moon-shaped cake
4	Ancient Greek	Σέλας	light, brightness, the bright flame or blaze of fire

Every word from Proto-Indo-European óynos →Every word from Old Latin noenum →Every word from Latin nōn →