I came here looking for the meaning of "Cush mo cree" which is written (and pronounced) in various forms in the well known Scottish Song: the Eriskay Love Lilt.
As a child in Scotland I was told that much of the untranslated Gaelic was untranslateable because it was "mouth music" meaning non-sense words or syllables to keep the tune "usually for dancing"

"Cruidh mo Chridh" may be 'hard is my heart' but the english words before it suggests its "harp of my heart"

Hwatever, its still a very haunting song.