Merlin, Vivian and Morgan le Fay?

Hello everyone, and thank you in advance for your help!

I would like to know how the names Merlin, Vivian, and Morgan le Fay, derived from Arthurian legend, are translated into Sindarin and Quenya, please!

Here are the etymologies of the names:

Merlin: from Old French form of Welsh Myrddhin, probably from Old Celtic Mori-dunon literally "of the sea-hill," from mori "sea" + dunom "hill"

Vivian: from Latin Vivianus (source also of French Vivien), literally "living, alive"

Morgan: likely derived from Old Welsh or Old Breton Morgen, meaning 'sea-born'

I wonder what others will come up with? Sindarin names:

Cuiniel = "Alive + -iel suf. “daughter; feminine suffix”

Gaeronnen = Sea + Born

Gaeramon = Sea + Hill

Oh, thank you very much for your quick response and for your translations, that's really awesome!