Archoptosis is a term that is not commonly known. However, the spelling of the word is intriguing. The IPA phonetic transcription of the word are [ɑrˈkɑptəsɪs], which indicates that the "ch" sound is pronounced as a "k" sound. This is because "ch" is used to represent the "k" sound in many words borrowed from Greek. The prefix "arch-", which means "chief" or "primary," is also pronounced with the "k" sound. Overall, the spelling of Archoptosis is fascinating and reflects the word's Greek origin.