Answer: begorrah

AnswerCrossword Clue
BEGORRAHIrish oath
BEGORRAHMild Irish oath
BEGORRAHIt pairs with "Faith," in a saying
BEGORRAHIrish oath (Var.)
BEGORRAHIrish oath (var.)
begorrah(Irish) by God!, also BEGORRA
begorrah(used as a euphemism for by God)