Where does “taismhéadar” come from?

taismhéadar (Irish) comes from Irish tais-, from Irish tais, from Old Irish taís, from Proto-Celtic taisto-.

taismhéadar (Irish): hygrometer

Definitions

Step	Language	Word	Meaning
1	Irish	tais-	moist, hygro-
2	Irish	tais	damp, moist, humid; soft, smooth, tender; mild,...
3	Old Irish	taís	dough
4	Proto-Celtic	taisto-	—

taismhéadar — Etymology, Origin & Word History | Etymology Explorer