From Eurfa Cymraeg, Welsh-English Eurfa/Freedict dictionary ver. 0.2.3: nac /nˈak/ <c> (n)or
nac /nˈak/ <c> (n)or
From Eurfa Cymraeg, Welsh-English Eurfa/Freedict dictionary ver. 0.2.3: nac /nˈak/ <b> not (negative responsive verbal particle)
nac /nˈak/ <b> not (negative responsive verbal particle)