Rapaire -> ropaire, m...3. Hist., rapparee...
                        Foclaoir Gaeilge-Bearla, 1977.

(Also can mean slasher, stabber, person of violence, gallowsbird and in the feminine, virago.)
                     
...Black Billy Grimes of Latnamard, he racked us long and sore --
God rest the faithful hearts he broke! -- we'll never see them more.
But I'll go bail he'll break no more while Trugh has gallows trees;
For why! he met one lonely night, the fearless Rapparees --
The angry Rapparees!
They never sin no more, my boys, who cross the Rapparees!....

                                  -- a peasant ballad of 1681,
                                  quotes in Padraic Colum, A
                                  Treasury of Irish Folklore
                                  (New York: Crown, 1954), p. 232ff.