geas

an raithneach faoi gheasaí - ní fhacthas aon phór ariamh air. Na feagha, a' raithneach, agus a' chloch gheal - chuir Naomh Páraic mallacht orthú (SBh). Ná bain le geis is ní bhainfidh geis leat (sean-ocal) (TMt), do not violate superstitious custom and superstition will not interfere with you.