The spelling of the word "Kemilla" can be explained using the International Phonetic Alphabet (IPA). The first syllable "Ke" is pronounced as /kɛ/ with a short e sound. The second syllable "mil" is pronounced as /mɪl/ with a short i sound. The final syllable "la" is pronounced as /lə/ with a schwa sound. Therefore, the correct spelling for the word "Kemilla" is phonetically transcribed as /kɛmɪlə/.
There doesn't appear to be any widely recognized or documented etymology for the word "Kemilla". It could be a unique name or a variant/spelling of another word from a specific language or culture that is not well-known. To provide a more accurate origin, additional context or information would be required.