DYNAST Meaning of DYNAST in English [ 'dɪnəst , 'dʌɪnəst , -nast ]■ noun a member of a ~y, especially a hereditary ruler.OriginC17: via L. from Gk dunastēs , from dunasthai 'be able'. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004