Where does “pravoúhlý” come from?

pravoúhlý (Czech) comes from Czech pravý, from Old Czech pravý, from Proto-Slavic pravъ, from Proto-Balto-Slavic prōˀwas, from Proto-Indo-European preh₃-wo-s, from Proto-Indo-European per-, from Proto-Indo-European pr̥tós — passed , crossed.

pravoúhlý (Czech): right, rectangular

Definitions

  1. right, rectangular

Ancestry of “pravoúhlý”, step by step

pravoúhlý traces back through two separate lines of ancestry.

via Czech pravý

StepLanguageWordMeaning
1Czechpravýright; true, genuine; right, proper
2Old Czechpravýright
3Proto-Slavicpravъright, straight; correct
4Proto-Balto-Slavicprōˀwas—
5Proto-Indo-Europeanpreh₃-wo-s—
6Proto-Indo-Europeanper-before, in front; first; to go through
7Proto-Indo-Europeanpr̥tóspassed , crossed

via Czech úhel

StepLanguageWordMeaning
1Czechúhelangle
2Proto-Slavicǫglьcoal
3Proto-Balto-Slavicanˀglíscoal, charcoal
4Proto-Indo-Europeanh₁óngʷl̥charcoal
5Proto-Indo-Europeanh₁engʷ-to burn; fire
Every word from Proto-Indo-European pr̥tós →Every word from Proto-Indo-European per- →Every word from Proto-Indo-European preh₃-wo-s →