Well, on with my own searching. I did also find this website:
About Ann(e) Boleyn (1507?-1536) & Elizabeth I, Queen of England (1533-1603, patroness)
with these notes
"Of special mention on this recording is an anonymous Marian lullaby, sung in Gaelic, without accompaniment, by Mhairi Lawson:
My love, my dear my darling thou,
my treasure new, my gladness thou,
my comely, beauteous baby son thou,
unworthy I to tend thee.
O dear the eye that softly looks,
o dear the heart that fondly loves,
thou but a tender babe thou art,
the graces all grow up with thee.
Hosanna to the Son of David,
my King, my lord, my Savior!
Great my joy to be song-lulling thee,
blessed among the women I."
These lyrics may be closer to what my friend is looking for. Anyone know the Scots Gaelic version?