Where does “töksähdellä” come from?

töksähdellä (Finnish) comes 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 “töksähdellä”, step by step

töksähdellä traces back through two separate lines of ancestry.

via Finnish ellä

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

via Finnish töksähtää

Step	Language	Word	Meaning
1	Finnish	töksähtää	to bump into and stop
2	Finnish	-ähtää	Front vowel variant of -ahtaa
3	Proto-Finnic	-ahtadak	Forms momentane verbs
4	Proto-Uralic	-ašta-	—

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