Correct spelling for the English word "Impostured" is [ɪmpˈɒstjʊ͡əd], [ɪmpˈɒstjʊəd], [ɪ_m_p_ˈɒ_s_t_j_ʊə_d] (IPA phonetic alphabet).
The word "impostured" is derived from the verb "imposture", which comes from the French word "imposture" itself. The French word can be traced back to the Latin word "impostor", meaning "deceiver" or "fraud". Overall, the etymology of "impostured" refers to the act of deceiving or defrauding someone.