Tessaraon

A tessaraon (sometimes also tessaraeon, tessarion, tessareon) is a temple precinct or group of temples situated atop a tessara, a sacred hill or mound. The term literally means "that which stands upon the tessara". Over time, however, the tessaraon has come to refer to a sacred precinct regardless of whether it is actually built on a tessara, and may now be used for any group of temples or even the grounds of a single temple; for instance, one may refer to a city's temple district as the tessaraon even if it does not stand on a holy hill. Still, throughout much of Orithea and Rhydain as well as the Sarcian Empire, it is common practice to build temples on actual tessaras (natural or manmade) wherever possible. 
Etymology: This term and its roots, tessara (holy mound) plus the -aon suffix (denoting "that which lies upon" or "that which is born up by") are Tuvai, and the word is used in the Tuvai-speaking parts of the human civilizaton. Non-Tuvai-speaking humans (Suagirs, Achuireans, Thelbirs, Daare Karsha, etc.) do not use the term, even in cases where they do share the tradition of building religious sites atop sacred hills or mounds.