Where does “механи́зм” come from?

механи́зм (Russian) comes from Latin mechanismus, from Ancient Greek μηχανή, from Ancient Greek μῆχος, from Proto-Indo-European meǵʰ-.

Ancestry of “механи́зм”, step by step

Step	Language	Word	Meaning
1	Latin	mechanismus	—
2	Ancient Greek	μηχανή	contrivance, machine, device, gear; way, means
3	Ancient Greek	μῆχος	means, expedient, remedy
4	Proto-Indo-European	meǵʰ-	—

механи́зм — Etymology, Origin & Word History | Etymology Explorer