Merlin /mer-lin/ [2 sylls.] as a boys' name is pronounced MER-lin. It is of Welsh origin, and the meaning of Merlin is sea fortress.Mythology: Arthurian tales describe Merlin as the wizard who was King Arthur's mentor. Myrddin, the wizard who tutored King Arthur in British legend was known as Myrddin Emrys.erlin /mer-lin/ [2 sylls.] as a boys' name is pronounced MER-lin. It is of Welsh origin, and the meaning of Merlin is sea fortress.
1 Preheat oven to 375 degrees F. 2  Coat beets lightly with oil. 3  Wrap beets in aluminum foil, place on a baking sheet, and roast in the oven until cooked through, approximately 45 to 60 minutes.  Remove from the oven, let cool for 10 minutes, and then peel and slice into 1/4-inch thick slices.
1 Wrap the foil around the beets, sealing it as if it were a package. Place the foil package on top of a rimmed sheet pan to protect your oven in the even the foil package leaks.  Roast in the oven for 30 to 60 minutes, depending upon the size and age of the beets. Test with a knife for doneness.