What do you think of these names? I'll star the ones I think I could use on a baby. Let me know what you think in terms of usability -- some of these are purely for D&D purposes. :P
Aelwen* -- fair brow
Aleine -- var. Helen, "sunbeam"
Aneira* -- "honor"
Anwen* -- "very beautiful"
Aoibhel -- "joyful, beautiful"
Aoife* -- "radiance, joy"
Aderyn -- "bird"
Arianrhod -- "silver wheel"
Aisling -- "dream, vision"
Áine* -- "radiance"
Branna* -- "raven"
Braith -- "speckled"
Branwen* -- "beautiful raven"
Briallen* -- "primrose"
Bronwen* -- "white breast"
Caoimhe -- "gentleness, beauty, grace, courtesy"
Ceinlys* -- "sweet gems"
Creirwy -- "fair crane"
Carys* -- "love"
Ceinwein* -- "lovely and fair"
Ceridwen -- "blessed poetry"
Eachna -- "horse"
Emer* -- Celtic legend
Eilwen* -- "fair brow"
Eirwen* -- "snow white"
Elen -- "sun"
Elspeth* -- Scottish for Elizabeth
Epona "Pony" -- goddess of horses
Eirlys* -- "snowdrop"
Elain -- "fawn"
Fainne* -- "ring, halo"
Fiona -- "fair, white, beautiful"
Firinne -- "truth, fidelity, genuineness"
Flanna* -- "bright red"
Ganeida -- "morning star," Merlin's sister
Grainne -- "grain," goddess of harvest
Gwendolen* -- "white ring"
Gweneira* -- "pure, white snow"
Keela -- "so beautiful that only poets can describe her"
Kerensa* -- "love, little love"
Lasair* -- "flame, blaze of fire, sunlight"
Liadan -- "grey lady"
Llinos -- "greenfinch"
Maeve* -- great warrior queen of Connacht
Maiwen* -- "beautiful May"
Mavourna/Mavourneen -- "my little darling"
Morwenna* -- "maiden"
Mor* -- "great one" and also Hebrew
Mwynen -- "my gentle one"
Myfanwy* -- "my lovely little one"
Meinir* -- "slender and tall"
Meinwen* -- "slender and white"
Muirenn -- "white sea"
Nemetona -- "keeper of the sacred grove"
Niamh* -- "radiance, brightness"
Olwen -- "white footprint"
Orlaith -- "golden lady"
Rhiannon* -- "nymph" or "moon goddess"
Rhianwen* -- "pure or blessed maiden"
Roisin* -- "little rose"
Rhosyn -- "rose"
Saraid -- "best, surpassing all"
Seirial -- "bright lady"
Seirian* -- "sparkling"
Sinead -- "G-d is gracious"
Sheila/Shelagh* -- "pure and musical" or "fairy princess"
Siobhan* -- "lily"
Sorcha -- "brightness, light"
Seren -- "star"
Siofra -- "elf, sprite"
Tangwystl -- "pledge of peace"
Tegwen -- "fair and blessed"
Tesni -- "warmth from the sun"
Tiwlip -- "tulip"