heb os nac oni bai

Welsh

Alternative forms

• (South Wales) heb os nag oni bai

Pronunciation

• (North Wales) IPA^(key): /ˌhɛb ɔs ˈnak ɔniː ˈbaiː/
• (South Wales) IPA^(key): /ˌhɛb ɔs ˈnak ɔniː ˈbaiː/, /ˌhɛb ɔs ˈnaɡ ɔniː ˈbaiː/

Prepositional phrase

heb os nac oni bai

1. (idiomatic) beyond a shadow of a doubt (without a doubt)

References

• R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke et al., editors (1950–present), “heb os nac oni bai”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies