Sorry, I reread your message and saw that you wanted the term "boatright" -- Here it is in Irish: Na Saoir Bád - pronounced (somewhat) like "nah sihr bwahd".

Hope this helps, Áine

(But, to tell you the truth, if you don't speak Gaelic or sing in Gaelic, then why try to be fancy? Why not just be yourselves and play the best music you know how to?)