Where does “jyskähtää” come from?

jyskähtää (Finnish) comes from Finnish -ähtää, from Proto-Finnic -ahtadak, from Proto-Uralic -ašta-.

Ancestry of “jyskähtää”, step by step

StepLanguageWordMeaning
1Finnish-ähtääFront vowel variant of -ahtaa
2Proto-Finnic-ahtadakForms momentane verbs
3Proto-Uralic-ašta-—
Every word from Proto-Uralic -ašta- →Every word from Finnish -ähtää →Every word from Proto-Finnic -ahtadak →