Where does “piston” come from?

piston (Finnish) comes from Finnish pisto, from Finnish pistää, from Proto-Finnic pistädäk, from Proto-Finno-Permic pistä-.

piston (Finnish): Genitive singular form of pisto

Definitions

Step	Language	Word	Meaning
1	Finnish	pisto	sting, bite; prick, puncture, hole made by...
2	Finnish	pistää	to poke, thrust; to stick, prick, stab, puncture;...
3	Proto-Finnic	pistädäk	to poke, to thrust, to stab, to sting; to put, to...
4	Proto-Finno-Permic	pistä-	—

piston — Etymology, Origin & Word History | Etymology Explorer