Where does “nonvenous” come from?

nonvenous (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.

nonvenous (English): Not venous

Definitions

Not venous

Ancestry of “nonvenous”, step by step

nonvenous 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 venous

Step	Language	Word	Meaning
1	English	venous	Of or pertaining to veins; Possessing veins;...
2	Latin	venosus	full of veins, venous; dry, meagre
3	Latin	-ōsus	ose, -ous, -ful (full of or overly prone to)
4	Old Latin	-ōssus	—

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