Where does “opak” come from?

opak (Old Czech) comes from Proto-Slavic opakъ — reverse, the other way round; the other way round.

Ancestry of “opak”, step by step

StepLanguageWordMeaning
1Proto-Slavicopakъreverse, the other way round; the other way round

Words derived from “opak

Every word from Proto-Slavic opakъ