Where does “ору́дие” come from?

ору́дие (Russian) comes from Old East Slavic орѫдие, from Old Church Slavonic орѫдиѥ, from Proto-Slavic orǫdьje.

Ancestry of “ору́дие”, step by step

Step	Language	Word	Meaning
1	Old East Slavic	орѫдие	—
2	Old Church Slavonic	орѫдиѥ	—
3	Proto-Slavic	orǫdьje	—

ору́дие — Etymology, Origin & Word History | Etymology Explorer