Its source gives its meaning as valiant. Though originally a given name, it is more popular and well known as a surname. The surname's first variant is O Ã³ (Raghallaigh descendent/Of Of) raghallach which was later adapted In english As'O reilly which itself has been anglicized Into. reilly
The word 'vatican' comes from Latin and is a contraction of two words in the following way: 'Vatis' = 'profetic' or 'diviner' 'Can' = 'serpent/snake'. These two words combined make: 'the profetic- or made devine serpent'. The Vatican is a place, so you may say, that 'Vatican' means 'the place of the profetic- and worshipped serpent'.
The name Vatican City 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 likely to derive from the name of an Etruscan settlement, possibly called Vatica or Vaticum, located in the general area the Romans called vaticanus ager, Vatican territory.