Where does “vastapainevoimala” come from?

vastapainevoimala (Finnish) comes from Finnish vastapaine, from Finnish vasta-, from Finnish vasta, from Swedish kvast, from Old Swedish quaster, from Old Norse kvǫstr, from Proto-Germanic kwastuz, from Proto-Indo-European gʷes- — twig; leafwork.

Ancestry of “vastapainevoimala”, step by step

vastapainevoimala traces back through two separate lines of ancestry.

via Finnish vastapaine

StepLanguageWordMeaning
1Finnishvastapainebackpressure
2Finnishvasta-Expressing opposition or contrast: counter-,...
3FinnishvastaExpressing delay or that something takes place...
4Swedishkvastbroom; tassel; cyme
5Old Swedishquaster
6Old Norsekvǫstr
7Proto-Germanickwastuztuft; tassel
8Proto-Indo-Europeangʷes-twig; leafwork

via Finnish voimala

StepLanguageWordMeaning
1Finnishvoimalapower plant
2Finnishvoimapower, strength, force, might; force; power
3Proto-Finnicvoimapower, strength, force, might
4Proto-Finnic-maForms action/result nouns from verbs; Forms the...
5Proto-Uralic-ma
Every word from Proto-Indo-European gʷes-Every word from Finnish vasta-Every word from Proto-Germanic kwastuz