köken: Etymology tree Latin cōpulārebor. Proto-Indo-European *h₂euh₁-der.? Proto-Slavic *-ovati Old Polish -ować Polish -ować Polish kopulować From Latin cōpulāre + Polish -ować. Doublet of kuplować (“to bind, couple, join”).
köken: From Proto-Indo-Aryan *Hyábʰati, from Proto-Indo-Iranian *Hyábʰati, from Proto-Indo-European *h₃yébʰeti, from *h₃yebʰ-. Cognate with Ancient Greek οἴφω (oíphō), Proto-Slavic *jebàti.