Pronunciation: [dˈɪdst ˌɒn wˈɒnz ˈə͡ʊn vəlˈɪʃən] (IPA)
Correct spelling for the English word "didst on ones own volition" is [dˈɪdst ˌɒn wˈɒnz ˈə͡ʊn vəlˈɪʃən], [dˈɪdst ˌɒn wˈɒnz ˈəʊn vəlˈɪʃən], [d_ˈɪ_d_s_t ˌɒ_n w_ˈɒ_n_z ˈəʊ_n v_ə_l_ˈɪ_ʃ_ə_n] (IPA phonetic alphabet).
Correct spelling for didst on ones own volition