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'.
There are also many people there who speak English, French, and other languages for the ease of international tourists. In Vatican City, the official language is Latin, which is used in most ceremonial settings by the Pope and other members of the Catholic Church.