Where does “оный” come from?

оный (Russian) comes from Old Church Slavonic онъ, from Proto-Slavic *onъ, from Proto-Balto-Slavic anas, from Proto-Indo-European h₂en — there.

оный (Russian): that, that very, the aforementioned; that other;...

Definitions

  1. that, that very, the aforementioned; that other;...

Ancestry of “оный”, step by step

StepLanguageWordMeaning
1Old Church Slavonicонъhe; that one there, that one yonder
2Proto-Slavic*onъ—
3Proto-Balto-Slavicanasthat over there, yonder
4Proto-Indo-Europeanh₂enthere
Every word from Proto-Indo-European h₂en →Every word from Proto-Balto-Slavic anas →Every word from Proto-Slavic *onъ →