The spelling of the word "Athelina" can be explained through the International Phonetic Alphabet (IPA). The first sound is represented by the letter A, pronounced as /æ/ in IPA. Then, the letter T represents the sound /θ/. The next letters, H, E, L, and I, correspond to the sounds /h/, /ɛ/, /l/, and /i/. Finally, the letter N is pronounced as /n/. Therefore, the correct spelling of "Athelina" can be transcribed phonetically as /æθɛlina/.