Where does “veneratus” come from?

veneratus (Latin) comes from Latin veneror, from Latin venus, from Proto-Indo-European wenh₁- — to love.

Ancestry of “veneratus”, step by step

Step	Language	Word	Meaning
1	Latin	veneror	I worship, adore, revere, venerate; I pay ...
2	Latin	venus	sale, purchase
3	Proto-Indo-European	wenh₁-	to love

veneratus — Etymology, Origin & Word History | Etymology Explorer