The tune in Gaelic is Caelin Deas. It is also known as It was on a Fine Summer's Morning. The air appears in Bunting's collection Ancient Irish Music(1796).

The English words are attributed to Thomas Moore (1770-1852).

For a complete list of tunes by Thomas Moore at this site see the Contemplator's Short Biography of Thomas Moore.

The music and lyrics may not fit together exactly - I got them from different places.

With courtesy I did salute her,
"Good-morrow, most amiable maid,
I'm your captive slave for the future."
"Kind sir, do not banter," she said,
"I'm not such a precious rare jewel,
That I should enamour you so;
I am but a plain country girl,"
Says Cailín deas crúite na mbó.

"The Indies afford no such jewel,
So precious and transparently fair,
Oh! do not to my flame add fuel,
But consent for to love me, my dear;
Take pity and grant my desire,
And leave me no longer in woe;
Oh! love me or else I'll expire,
Sweet Cailín deas crúite na mbó."

"Or had I the wealth of great Damer,
Or all on the African shore,
Or had I great Devonshire treasure,
Or had I ten thousand times more,
Or had I the lamp of Alladin,
Or had I his genie also,
I'd rather live poor on a mountain,
With Cailín deas crúite na mbó."

"I beg you'll withdraw and don't tease me;
I cannot consent unto thee.
I like to live single and airy,
Till more of the world I do see.
New cares they would me embarrass,
Besides, sir, my fortune is low,
Until I get rich I'll not marry,"
Says Cailín deas crúite na mbó.

"An old maid is like an old almanack,
Quite useless when once out of date;
If her ware is not sold in the morning
At noon it must fall to low rate.
The fragrance of May is soon over,
The rose loses its beauty, you know;
All bloom is consumed in October,
Sweet Cailín deas crúite na mbó."