The word "Acephalist" is a fairly uncommon term that refers to someone who is without a leader or ruler. Its pronunciation can be spelled out using the International Phonetic Alphabet (IPA) as /əˈsɛfəlɪst/, with the stress on the second syllable. The first syllable is pronounced with a short "uh" sound, followed by an "s" and a long "eh" sound. The second syllable has a short "i" sound followed by "st". The final syllable is pronounced with a short "ih" sound.
The term "Acephalist" appears to be a relatively new word, and information about its etymology is limited. It seems to be derived from the Greek prefix "a-", meaning "without", combined with the word "cephalic", which relates to the head or brain. As a result, "Acephalist" could be understood as someone or something that is without a head or leader. However, it is essential to note that "Acephalist" is not a widely recognized or commonly used term, so its etymology might still evolve or vary in different contexts.