Where does “Bealarúisis” come from?

Bealarúisis (Irish) comes from Irish -is, from Old Irish -as, from Proto-Celtic -assus, from Proto-Indo-European -ad-tus.

Bealarúisis (Irish): the Belarusian language

Definitions

  1. the Belarusian language

Ancestry of “Bealarúisis”, step by step

StepLanguageWordMeaning
1Irish-is-ish, -ese; inflection of -eas: ##...
2Old Irish-asNominal suffix, used to form abstract ideas or...
3Proto-Celtic-assus—
4Proto-Indo-European-ad-tus—
Every word from Proto-Indo-European -ad-tus →Every word from Irish -is →Every word from Old Irish -as →