Where does “jagniok” come from?

jagniok (Polish) comes from Polish jagnię, from Proto-Slavic agnę, from Proto-Slavic agnъ, from Proto-Baltic ōgnas, from Proto-Indo-European h₂egʷnós, from Proto-Indo-European -nós — Creates verbal adjectives from roots.

Ancestry of “jagniok”, step by step

StepLanguageWordMeaning
1PolishjagnięA young sheep or goat; a yeanling; a lamb; a kid;...
2Proto-Slavicagnęlamb
3Proto-Slavicagnъlamb
4Proto-Balticōgnas—
5Proto-Indo-Europeanh₂egʷnóslamb
6Proto-Indo-European-nósCreates verbal adjectives from roots
Every word from Proto-Indo-European -nós →Every word from Proto-Indo-European h₂egʷnós →Every word from Proto-Baltic ōgnas →