And within my cradle lying,

Angels came about me flying

And they kissed me on my brow.

Sleep, then, little baby, sleep:

Sleep, nor cry again to-night,

Lest the angels take to flight

So as not to see thee weep.

"The Moor" is in this instance a benignant kind of bogey, not far removed from harmless "wee Willie Winkie" who runs upstairs and downstairs in his nightgown:

Tapping at the window,