The correct spelling of the word "more low neck" can be explained by using the International Phonetic Alphabet (IPA) transcription. The first word, "more," is pronounced as /mɔːr/. The second part, "low," is pronounced as /ləʊ/. Finally, the word "neck" is pronounced as /nɛk/. Therefore, the correct spelling of the word is "more low neck." All three words are pronounced with emphasis on the first syllable, and the second word, "low," rhymes with the word "go."