Where does “étuver” come from?

étuver (French) comes from Old French estuver, from Old French estuve, from Medieval Latin stupha, from Ancient Greek τῦφος, from Ancient Greek τύφω, from Proto-Indo-European dhubh-, from Proto-Indo-European dheu- — scatter like dust.

étuver (French): to dry in a drying oven

Definitions

to dry in a drying oven

Ancestry of “étuver”, step by step

Step	Language	Word	Meaning
1	Old French	estuver	to bathe
2	Old French	estuve	large bath
3	Medieval Latin	stupha	—
4	Ancient Greek	τῦφος	a kind of fever; delusion, vanity; nonsense
5	Ancient Greek	τύφω	to smoke, fill with smoke; to consume in smoke
6	Proto-Indo-European	dhubh-	—
7	Proto-Indo-European	dheu-	scatter like dust

Every word from Proto-Indo-European dheu- →Every word from Proto-Indo-European dhubh- →Every word from Ancient Greek τύφω →