MERIONETH Meaning of MERIONETH in English Merioneth BrE AmE ˌmer i ˈɒn əθ -ɪθ, -eθ AmE -ˈɑːn- —Welsh Meirionnydd [ məir ˈjɔn ɨð, -ɪð \] Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012