Where does “jaldiere” come from?

jaldiere (Old French) comes from Late Latin caldaria, from Latin caldus — Syncopated but Classical form of calidus.

Ancestry of “jaldiere”, step by step

Step	Language	Word	Meaning
1	Late Latin	caldaria	warm bath; warm bath, cauldron; nominative...
2	Latin	caldus	Syncopated but Classical form of calidus

jaldiere — Etymology, Origin & Word History | Etymology Explorer