Pronunciation: [ˌə͡ʊvəstɹˈe͡ɪtli] (IPA)
Correct spelling for the English word "Overstraitly" is [ˌə͡ʊvəstɹˈe͡ɪtli], [ˌəʊvəstɹˈeɪtli], [ˌəʊ_v_ə_s_t_ɹ_ˈeɪ_t_l_i] (IPA phonetic alphabet).