Where does “tuhkakartio” come from?

tuhkakartio (Finnish) comes from Finnish tuhka, from Proto-Finnic tuhka, from Proto-Germanic tuskijaną, from Proto-Indo-European dh₂uske-.

tuhkakartio (Finnish): cinder cone

Definitions

Step	Language	Word	Meaning
1	Finnish	tuhka	ash
2	Proto-Finnic	tuhka	ash
3	Proto-Germanic	tuskijaną	to burn, be burning
4	Proto-Indo-European	dh₂uske-	—

tuhkakartio — Etymology, Origin & Word History | Etymology Explorer