Arcado-Cyprians refers to the ancient people who lived in the regions of Arcadia and Cyprus. While the term might not be commonly used today, there are other synonyms that can be used to describe this group of people. For example, the term "Cypriots" can be used to refer to the people from Cyprus, and "Arcadians" can be used to describe those from the region of Arcadia. Other synonyms might include "ancient Greeks," "Mycenaeans," or "Aegeans," as these groups had significant cultural and historical ties to the Arcado-Cyprians. Overall, while the term "Arcado-Cyprians" might not be frequently used, there are various synonyms available to describe this ancient people group.