Where does “hankaussähkö” come from?

hankaussähkö (Finnish) comes from Finnish sähkö, from Finnish sähähtää, from Finnish ahtaa, from Proto-Finnic aktadak, from Proto-Uralic ëkta- — to hang up.

hankaussähkö (Finnish): triboelectricity

Definitions

triboelectricity

Ancestry of “hankaussähkö”, step by step

hankaussähkö traces back through two separate lines of ancestry.

via Finnish sähkö

Step	Language	Word	Meaning
1	Finnish	sähkö	electricity
2	Finnish	sähähtää	to sizzle
3	Finnish	ahtaa	to cram, stuff, fill, pack full; to supercharge;...
4	Proto-Finnic	aktadak	to hang up, especially traps; grain to dry in a...
5	Proto-Uralic	ëkta-	to hang up

via Finnish hankaus

Step	Language	Word	Meaning
1	Finnish	hankaus	rubbing
2	Finnish	hangata	to rub; "~ vastaan:" to resist
3	Finnish	-ta	A suffix for the partitive singular case; Forms...
4	Proto-Finnic	-ta	Partitive ending
5	Proto-Uralic	-tä	from

Every word from Proto-Uralic ëkta- →Every word from Proto-Finnic aktadak →Every word from Finnish ahtaa →