Pronunciation: [ˈɜːθa͡ɪn] (IPA)
Correct spelling for the English word "Erthine" is [ˈɜːθa͡ɪn], [ˈɜːθaɪn], [ˈɜː_θ_aɪ_n] (IPA phonetic alphabet).
Correct spelling for Erthine