Where does “pleh₂-r-” come from?

pleh₂-r- (Proto-Indo-European) comes from Proto-Indo-European pleh₂- — flat.

Ancestry of “pleh₂-r-”, step by step

StepLanguageWordMeaning
1Proto-Indo-Europeanpleh₂-flat

Words derived from “pleh₂-r-

Every word from Proto-Indo-European pleh₂-