Where does “solustacht” come from?

solustacht (Middle Irish) comes from Middle Irish solusta, from Middle Irish solus, from Old Irish solus, from Old Irish so, from Proto-Celtic so, from Proto-Indo-European só — this; that.

solustacht (Middle Irish): brightness, radiance

Definitions

  1. brightness, radiance

Ancestry of “solustacht”, step by step

StepLanguageWordMeaning
1Middle Irishsolustabright, shining
2Middle Irishsolusbright; clear; clear, lucid
3Old Irishsolusbright, clear
4Old Irishsothis
5Proto-Celticsothis
6Proto-Indo-Europeansóthis; that
Every word from Proto-Indo-European só →Every word from Proto-Celtic so →Every word from Old Irish so →