Where does “caldeira” come from?

caldeira (French) comes from Portuguese caldeira, from Old Portuguese caldeyra, from Latin caldāria, from Latin caldārius, from Latin -ārius, from Proto-Italic *-āzios — Forms relational adjectives to nouns (and rarely numerals).

caldeira (French): caldera

Definitions

caldera

Ancestry of “caldeira”, step by step

Step	Language	Word	Meaning
1	Portuguese	caldeira	boiler device for heating circulating water
2	Old Portuguese	caldeyra	—
3	Latin	caldāria	warm bath
4	Latin	caldārius	Of, pertaining to or suitable for warmth or bathing
5	Latin	-ārius	er
6	Proto-Italic	*-āzios	Forms relational adjectives to nouns (and rarely numerals)

Words derived from “caldeira”

caldeiră

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