Where does “deis” come from?

deis (Irish) comes from Irish deas, from Old Irish dess, from Proto-Celtic dexswos, from Proto-Indo-European deḱswo-, from Proto-Indo-European deḱs- — right.

deis (Irish): right hand; right-hand side; suitable,...

Definitions

  1. right hand; right-hand side; suitable,...

Ancestry of “deis”, step by step

StepLanguageWordMeaning
1Irishdeassouth, southerly, to the south; right,...
2Old Irishdessright; south
3Proto-Celticdexswosright; south
4Proto-Indo-Europeandeḱswo-—
5Proto-Indo-Europeandeḱs-right
Every word from Proto-Indo-European deḱs- →Every word from Proto-Indo-European deḱswo- →Every word from Proto-Celtic dexswos →