Pronunciation: [ˌʌndəswˈe͡ɪn] (IPA)
Correct spelling for the English word "underswain" is [ˌʌndəswˈe͡ɪn], [ˌʌndəswˈeɪn], [ˌʌ_n_d_ə_s_w_ˈeɪ_n] (IPA phonetic alphabet).
Correct spelling for underswain