Puer natus, sum laetatus, in hac die gaudiosa,
dies splendens et formosa.
Veni nunc ad redimendum, e rosarum rosa natus,
in presepio beatus. O caelorum imperator, sol justitiae vocaris,
natus es e stella maris.
Clavis David qui aperis, veni nunc desideratus,
miserorum memoratus.
Nostre vitae fons et aqua, dulcis infans et creator,
nobis lumen et salvator.

On this bright and beautiful day,
A child is born, and I rejoice on this joyful day,
a bright and beautiful day.
Come now to redeem, O child born of the rose of roses,
blessed in the manger.
O ruler of the heavens, called the sun of justice,
you were born of the star of the sea.
Key of David to open, come now O long-desired,
mindful of the wretched.
Fountain and water of our life, sweet child and creator,
our light and saviour.