Vatican City
The name was first used in the Lateran Treaty, signed on 11 February 1929, which established the modern city-state. The name is taken from Vatican Hill, the geographic location of the state. "Vatican" is derived from the name of an Etruscan settlement, "Vatica" or "Vaticum" meaning garden, located in the general area the Romans called "vaticanus ager", "Vatican territory".
Vaticanology
Vaticanology is term coined in the 20th century to describe the field of journalism and research studying and reporting about how the Holy See and the Roman Catholic Church operate. It is named after the Vatican City, the Holy See's sovereign territory enclaved with in Rome, Italy. Particular emphasis tend to be placed on the selection and appointment mechanisms by which the Church's leadership emerges.