Where does “hornear” come from?

hornear (Spanish) comes from Spanish horno, from Old Spanish forno, from Latin furnus, from Proto-Italic fornos, from Proto-Indo-European gʷʰr̥-nós, from Indo-European *gʷʰer-.

hornear (Spanish): to bake

Definitions

to bake

Ancestry of “hornear”, step by step

Step	Language	Word	Meaning
1	Spanish	horno	oven; furnace; a very hot place
2	Old Spanish	forno	—
3	Latin	furnus	oven; bakery
4	Proto-Italic	fornos	—
5	Proto-Indo-European	gʷʰr̥-nós	—
6	Indo-European	*gʷʰer-	—

Every word from Indo-European *gʷʰer- →Every word from Proto-Indo-European gʷʰr̥-nós →Every word from Proto-Italic fornos →