This text comes from The Book of Scottish Song, edited by Alexander Whitelaw, a historical songbook transcribed on Wikisource and reproduced from the pinned revision linked below.
As I cam' doun the Cannogate,
The Cannogate, the Cannogate,
As I cam' doun the Cannogate,
I heard a lassie sing, O:
Merry may the keel rowe,
The keel rowe, the keel rowe,
Merry may the keel rowe,
The ship that my love's in, O!
My love has breath o' roses,
O' roses, o' roses,
Wi' arms o' lily posies,
To fauld a lassie in, O!
Merry may, &c.
My love he wears a bonnet,
A bonnet, a bonnet,
A snawy rose upon it,
A dimple on his chin, O!
Merry may, &c.