Where does “ъгълник” come from?

ъгълник (Bulgarian) comes from Bulgarian ъгъл, from Proto-Slavic ǫgъlъ, from Proto-Balto-Slavic *ángulas, from Proto-Indo-European h₂engulos, from Proto-Indo-European h₂eng- — curve, bend.

ъгълник (Bulgarian): square device for drawing right angles

Definitions

  1. square device for drawing right angles

Ancestry of “ъгълник”, step by step

StepLanguageWordMeaning
1Bulgarianъгълangle, corner
2Proto-Slavicǫgъlъcorner, angle
3Proto-Balto-Slavic*ángulas—
4Proto-Indo-Europeanh₂engulosjoint?
5Proto-Indo-Europeanh₂eng-curve, bend
Every word from Proto-Indo-European h₂eng- →Every word from Proto-Indo-European h₂engulos →Every word from Proto-Balto-Slavic *ángulas →