Where does “venenous” come from?

venenous (English) comes from Latin venēnōsus, from Latin venēnum, from Proto-Italic weneznom, from Proto-Indo-European wenh₁- — to love.

venenous (English): venomous; poisonous

Definitions

Step	Language	Word	Meaning
1	Latin	venēnōsus	—
2	Latin	venēnum	—
3	Proto-Italic	weneznom	lust, desire
4	Proto-Indo-European	wenh₁-	to love

venenous — Etymology, Origin & Word History | Etymology Explorer