Where does “lugha” come from?

lugha (Scottish Gaelic) comes from Old Irish lugu, from Old Irish laigiu, from Proto-Celtic *lagyūs, from Proto-Indo-European h₁lengʷʰ- — light.

lugha (Scottish Gaelic): comparative degree of beag

Definitions

  1. comparative degree of beag

Ancestry of “lugha”, step by step

StepLanguageWordMeaning
1Old Irishlugucomparative degree of bec
2Old IrishlaigiuAlternative form of lugu
3Proto-Celtic*lagyūs—
4Proto-Indo-Europeanh₁lengʷʰ-light
Every word from Proto-Indo-European h₁lengʷʰ- →Every word from Proto-Celtic *lagyūs →Every word from Old Irish laigiu →