Where does “carene” come from?

carene (English) comes from Latin carēna, from Late Latin quadragēna, from Latin quadrāgēnus, from Latin -ārius, from Proto-Italic *-āzios — Forms relational adjectives to nouns (and rarely numerals).

carene (English): A fast of forty days on bread and water

Definitions

A fast of forty days on bread and water

Ancestry of “carene”, step by step

carene traces back through 3 separate lines of ancestry.

via Latin carēna

Step	Language	Word	Meaning
1	Latin	carēna	—
2	Late Latin	quadragēna	—
3	Latin	quadrāgēnus	forty each; forty at a time
4	Latin	-ārius	er
5	Proto-Italic	*-āzios	Forms relational adjectives to nouns (and rarely numerals)

via French carène

Step	Language	Word	Meaning
1	French	carène	hull; keel
2	Italian	carena	keel; third-person singular present indicative of...
3	Latin	carina	keel of a ship; ship
4	Proto-Indo-European	ḱerh₂-	head, top; horn

via Latin carēnum

Step	Language	Word	Meaning
1	Latin	carēnum	A reduction of must in Ancient Roman cuisine, made by boiling down grape juice or must in large kettles until reduced to two thirds of the original volume
2	Ancient Greek	κάροινον	carenum, sweet wine boiled down

Every word from Proto-Italic *-āzios →Every word from Latin -ārius →Every word from Latin quadrāgēnus →