Irish Sign Language (ISL), which is different from North Irish Sign Language (NISL), is the language of Ireland primarily used in the Republic of Ireland.
ISL descended from LSF (French Sign Language); whereas, NISL is a dialect of British Sign Language. Although, it's influenced by both roots.
Like other signed languages around the world, ILS is a language of its own lexicon, syntax, and all. It's not based on a spoken language.
"Learn Irish Sign Language." http://www.learnirishsignlanguage.ie/
Janzen, Terry. Topics in Signed Language Interpreting. "Vying with variation: Interpreting language contact, gender variation and generational difference" by Lorraine Leeson. Pp 251-292. Amsterdam/Philadelphia: John Benjamins Publishing Company.
Related posts: North Ireland Sign Language.
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