The 2 official languages of the Republic of Ireland are English & this one, also known as Irish
... Aside from thses two most important languages there is also 
Shelta (Traveller Cant, ... Because of these dialectical differences, a so-called 
official standard... [DOC] [TLE] Attitudes towards the Irish Language on the Island of Ireland [PAR] also gratefully acknowledge the advice and useful comments from Foras na.