Tamsin is an offbeat name occasionally heard in Britain and just waiting to be discovered here. U.K. actress Tamsin Greig is a star of the show Episodes, Tamsin Olivier is the daughter of Joan Plowright and Sir Laurence Olivier..

Cassia is related to the cassia tree, which has yellow flowers and produces a spice that can be a substitute for cinnamon. Keziah, the name of Job’s daughter in the Old Testament, derives from the name of the plant as well. Cassia also has ties to the Ancient Roman name Cassius, an Ancient Roman family name meaning "hollow."

Dorothea is a romantic Victorian-sounding name that blends elegance, gravitas and a hint of clunkiness too. Popular in the early decades of the twentieth century, it has been off the charts since 1970, however it's definitely on the brink of a revival! In fact, it has already been making its way back into the UK Top 1000, and a recent year saw it given to 90 girls in the US — three times the number it was given to a decade prior.

A beautiful Hebrew name that would work perfectly for a child today.

With its relation to Mount Olympus, home of the Greek gods, and to the Olympic games, this name has an athletic, goddess-like aura, making it the perfect Olivia substitute.

Classic yet spritely, Tatiana has long been familiar and popular in Russia and Eastern Europe, though it wasn't until the 80s that it caught on in the English-speaking world. With short forms Tiana, Tati, and Tanya, it is a versatile choice that has nevertheless seen a decline in use in recent year.

Despite a return to such feminizations of male names as Josephine, Clementine, and Theodora, starchy Henrietta has not made it into that group. Still, if you look hard enough, you'll see that Henrietta has the same vintage charm.

Though it may not be as sweet and gentle as, say, Violet, the purple-hued Hyacinth still might hold some appeal for the parent seeking a truly unusual flower name.

Bright and vivid, Marisol is a sunny name of Spanish origin and an excellent candidate to cross languages, a la Soledad, Paz, and Solana. Familiar in its native Spain (though no longer a top choice), a recent year also saw Marisol make the Top 1000 in the US, the Top 200 in Italy, and the Top 100 in Mexico.

Oriana is a dashing medieval name, with a meaning similar to Aurora. At this point, though, Oriana is much more unusual than Aurora and makes a unique choice if you're searching for names that mean new beginnings or dawn.

Clarissa, the daintier version of Claire, has a long literary history of its own, having been featured in the novels of Samuel Richardson, Charles Dickens, and Virginia Woolf—Clarissa was the title character of Mrs. Dalloway—not to mention the 1990s teen sitcom, Clarissa Explains it All.

Wilhelmina might once have been condemned as a clunky relic best left in the past, but a steadily increasing number of parents are dusting it off for their 21st century babies. A reasonably popular choice in the 19th century, but out of favor by the 1950s, in the last decade, Wilhelmina has attracted more attention, and was given to around 110 babies in a recent year.

Esmeralda came into use as an applied use of the Spanish word for emerald, esmeralda. In the 1831 Victor Hugo novel Notre-Dame de Paris, also known as The Hunchback of Notre-Dame, the heroine was born Agnes, but called La Esmeralda in reference to the jewel she wears around her neck. The name Esmeralda got increased visibility via the Disney version of the story.

Minerva is the long-neglected name of the Roman goddess of wisdom and invention, the arts and martial strength, one of the mythology names for girls that might appeal to adventurous feminist parents. With Juno and Jupiter, she made the Capitoline triad, whose worship was at the very center of Roman religion.

Araminta is a poetic and enchanting eighteenth-century invention with plenty of elegance and a touch of old-fashioned clunkiness. It first appeared in William Congreve's 17th century comedy The Old Bachelor and then again in 1705 when it was used by architect and playwright Sir John Vanbrugh in his play The Confederacy.

Cressida is a pretty mythological and Shakespearean heroine name much better known in Britain than it is in the US. Given to just 7 girls in a recent year, it shares the cool golden meaning of Aurelia, Orla, and Goldie, and offers cute Cassie- alternative nickname Cressie, along with Ida and Sid too.

This lovely, quintessentially British appellation, also spelled Rosamond, is the name of a legendary twelfth-century beauty. Rare on these shores, it is more than worthy of importation.

One of the stellar unique baby names from mythology, Andromeda was the beautiful daughter of Cassiopeia who, like her mother, literally became a star--the constellation that bears her name.The Bohemian Andromeda makes a dramatic and adventurous choice in a time when four-syllable mythological names are gradually making their way into the mainstream.

A soft and interesting Hebrew name long popular in France, where it has ranked in the Top 400 since 1986 (as Salomé). Ex-ER star Alex Kingston named her daughter Salome Violetta.

Drusilla is an ancient Roman name, (probably) borne by descendants of Antony and Cleopatra, and is one of the 'illa' names that are ready for a comeback, especially with its cute short form Dru.