Where does “turmeleminen” come from?

turmeleminen (Finnish) comes from Finnish turmella, from Finnish ellä, from Finnish Elina, from Finnish Helena, from Swedish Helena, from Ancient Greek ἑλένη, from Proto-Indo-European swel- — to smolder; burn; scorch; beam, board, frame,...

Ancestry of “turmeleminen”, step by step

Step	Language	Word	Meaning
1	Finnish	turmella	to damage, mar, ruin; to taint, corrupt; to...
2	Finnish	ellä	if
3	Finnish	Elina	Helen
4	Finnish	Helena	—
5	Swedish	Helena	Helen
6	Ancient Greek	ἑλένη	torch, firebrand; corposant, St. Elmo's fire;...
7	Proto-Indo-European	swel-	to smolder; burn; scorch; beam, board, frame,...

Every word from Proto-Indo-European swel- →Every word from Ancient Greek ἑλένη →Every word from Swedish Helena →