Where does “повноцінний” come from?

повноцінний (Ukrainian) comes from Ukrainian ціна, from Old East Slavic цѣна, from Proto-Slavic cěna, from Proto-Balto-Slavic kainā́ˀ, from Proto-Indo-European kʷoynéh₂, from Proto-Indo-European kʷey- — to pay; to avenge.

повноцінний (Ukrainian): full value, of full value said of currency, coin etc

Definitions

  1. full value, of full value said of currency, coin etc

Ancestry of “повноцінний”, step by step

повноцінний traces back through two separate lines of ancestry.

via Ukrainian ціна

StepLanguageWordMeaning
1Ukrainianцінаprice
2Old East Slavicцѣна—
3Proto-Slaviccěnaprice; value
4Proto-Balto-Slavickainā́ˀprice
5Proto-Indo-Europeankʷoynéh₂payment; punishment, vengeance
6Proto-Indo-Europeankʷey-to pay; to avenge

via Ukrainian по́вний

StepLanguageWordMeaning
1Ukrainianпо́внийfull
2Russian-ота́—
3Proto-Slavic-otaDeadjectival, forming abstract nouns denoting the...
4Proto-Balto-Slavic-atā́ˀ—
5Proto-Indo-European-otéh₂—
Every word from Proto-Indo-European kʷey- →Every word from Proto-Indo-European kʷoynéh₂ →Every word from Proto-Balto-Slavic kainā́ˀ →