Where does “välkähdys” come from?

välkähdys (Finnish) comes from Finnish välkähtää, from Finnish ahtaa, from Proto-Finnic aktadak, from Proto-Uralic ëkta- — to hang up.

Ancestry of “välkähdys”, step by step

StepLanguageWordMeaning
1FinnishvälkähtääAlternative form of välähtää
2Finnishahtaato cram, stuff, fill, pack full; to supercharge;...
3Proto-Finnicaktadakto hang up, especially traps; grain to dry in a...
4Proto-Uralicëkta-to hang up
Every word from Proto-Uralic ëkta- →Every word from Proto-Finnic aktadak →Every word from Finnish ahtaa →