Where does “réticulaire” come from?

réticulaire (French) comes from French réticule, from Latin rēticulum, from Latin -culus, from Proto-Italic *-kelos.

réticulaire (French): reticular

Definitions

Step	Language	Word	Meaning
1	French	réticule	reticle
2	Latin	rēticulum	—
3	Latin	-culus	Alternative form of -ulus; added to a noun to...
4	Proto-Italic	*-kelos	—

réticulaire — Etymology, Origin & Word History | Etymology Explorer