Cois Abhann na Séad (slow air)

I can't think of any quick tunes at the moment so here's a slow one.  I want to spell this "Cois Abhainn na Seod" but forces I don't understand take me to the spelling I used instead.  This is a song air which comes from Cúil Aodha in Co. Cork.  I probably have it all wrong but I never go to Cork so I should be safe from close quarter retribution at least.  (The title in English is "Beside the River of Gems /  Jewels - I know how to spell that anywaieieieiy).