Where does “heristäminen” come from?

heristäminen (Finnish) comes from Finnish heristää, from Finnish haristaa, from Finnish hara, from Finnish -lä, from Finnish -as, from Proto-Finnic -s, from Proto-Finno-Ugric -s.

Ancestry of “heristäminen”, step by step

StepLanguageWordMeaning
1Finnishheristääto shake especially in a menacing or threatening way, such as when shaking one's fist
2Finnishharistaato spread apart
3Finnishharaharrow
4Finnish-läFront vowel variant of -la
5Finnish-asForms some adjectives; Forms some nouns
6Proto-Finnic-sForms nouns
7Proto-Finno-Ugric-s
Every word from Proto-Finno-Ugric -sEvery word from Finnish -läEvery word from Finnish -as