Where does “okénce” come from?

okénce (Old Czech) comes from Old Czech -cě, from Proto-Slavic -ьca, from Proto-Slavic -ьka, from Proto-Balto-Slavic -ikaʔ, from Proto-Indo-European -ikeh₂.

Ancestry of “okénce”, step by step

StepLanguageWordMeaning
1Old Czech-cě—
2Proto-Slavic-ьcaDenominal, forms diminutives; Deverbal , forms...
3Proto-Slavic-ьka—
4Proto-Balto-Slavic-ikaʔ—
5Proto-Indo-European-ikeh₂—
Every word from Proto-Indo-European -ikeh₂ →Every word from Proto-Slavic -ьka →Every word from Old Czech -cě →