One of the most romantic of appellations, Caspian is a geographical name referring to the large salty sea between Asia and Europe. It's also the name of the hero of C.S. Lewis's beloved Chronicles of Narnia, Prince Caspian.

Bright, fresh, and sunny, Ayla is a fashionable and exciting international choice for girls. Reminiscent of other trending names such as Layla, Isla, and Ava, Ayla has recently found its place in the Top 100.

In Greek mythology, Nyx was a powerful goddess and the embodiment of the night, giving this name a dark yet mystical feel. While some may associate too strongly with the word nix (meaning "nothing", "refuse" or "put an end to"), or to the make-up brand Nyx, it was nevertheless chosen for 64 girls (and 26 boys) in the US in a recent year.

Azriel is more masculine than Ariel, more unusual than Israel. Also spelled Asriel and Azrael, Azriel is the name of the Angel of Death in Jewish and Muslim traditions.

This name of a Roman emperor and of a sedating plant is still used quietly, given to about a dozen baby boys in the US last year. It has a strong, rhythmic sound and could make a modern-feeling honor name for grandma Valerie.

Eilonwy is a rare and poetic Welsh name first recorded in the late 19th century and used by Lloyd Alexander for his novel series The Chronicles of Prydain. The character appeared in Disney's adaptation of the series. In both the books and on the screen, Eilonwy is a feisty yet kind character. Read more about Eilonwy and other Disney Princess Names in our featured blog.

Morwenna is an ancient Cornish name now being revived in Wales, deriving from a Celtic word meaning "maiden", although the Mor- syllable means that it's often associated with the sea. It's been heard in the British series Doc Martin and Poldark. Morwenna Banks is a British actress.

Ferelith is an unusual yet deeply-rooted Scottish girl's name, also found in ancient Ireland and drawn from the Gaelic Forbhlaith or Forbflaith. While it went through a period of dormancy after the Middle Ages, there are some modern women named Ferelith, including actress Ferelith Young and Princess of Denmark Anne Ferelith Fenella Bowes-Lyon.

Elva is a multicultural choice, being both an anglicization of the Irish Ailbhe and an feminine form of the name Alf, meaning "elf". Popular in the US at the beginning of the 20th century, it remained in the charts until the 1970s before falling out of favor.

Related to blackberry plants and colloquially to any thorny shrub, Bramble also has history as an English surname.

Unusual and lush Roman name adopted, improbably, by the Puritans.

Common name in Wales that's all but unknown in the U.S. Certainly an attractive choice ripe for export. In the UK it sits at Number 330.

Although Greek in origin--in the fourth century, a bishop by that name established the principles of the Greek Orthodox Church--Basil for years took on the aura of aquiline-nosed upper-class Britishness of Sherlock Holmes portrayer Basil Rathbone, then spiced with the fragrant aroma of the herb that entered with the Pesto generation.

A modern, unisex Welsh name with a shiny feel, Eirian can mean "silver" (from Welsh arian) or "snow, brilliant, bright" (from eira). It may appeal to those who like rising star Eira, but want something longer, or more gender neutral.

The mythological Morrigan was the ancient goddess of war, often symbolized by a crow. Besides being a name, this is also used as a proper noun preceded by an article: the Morrigan, defined as a monster in female form. The meaning of Morrigan has been related to both terror and greatness. While some relate the name to Morgan of the Arthurian legends, Morrigan and Morgan are actually unrelated.

Endellion is the name of an early saint who was a daughter of King Brychan and goddaughter of King Arthur whose life is commemorated by the Cornish village of St. Endellion. This intriguing ancient name was brought into modern usage by British Prime Minister David Cameron, who used it as one of the middle names for his fourth child, a baby girl.

This is one of the more unusual examples of a group of Greek names connected to the sea, which makes sense for a nation of coastline and islands. The Nereids or water nymphs were the daughters of sea god Nereus.

Much more manageable than the full form of the name. Possible international alternative to Ella.

Celyn, which starts with the hard K sound and rhymes with Helen, is a Top 100 name in Wales although largely unknown outside that tiny, beautiful country. It is usually a masculine name.

This is an attractive Celtic mythological name, popular in Wales and a cousin of the better known Bronwyn. In Welsh mythology, Branwen was turned into a bird.