Where does “otkładać” come from?

otkładać (Old Polish) comes from Old Polish kładać, from Proto-Slavic *kladati.

Ancestry of “otkładać”, step by step

StepLanguageWordMeaning
1Old Polishkładać—
2Proto-Slavic*kladati—
Every word from Proto-Slavic *kladati →Every word from Old Polish kładać →
otkładać — Etymology, Origin & Word History | Etymology Explorer