This feminine form of Theodosius has long been buried deep in the attic, but might be a good discovery for the parent who wants to move beyond Theodora. Vice President Aaron Burr named a daughter Theodosia ("Dear Theodosia" is a song in the smash musical Hamilton), and it was the birth name of silent screen vamp Theda Bara. Theodosia actually appeared on the US popularity lists in the 1880s and 90s.

Ambrosia combines some of the more whimsical qualities of more popular Aurora and Isabella, with a heavenly meaning.

A rarely heard--even in France--name, most prominent as the third name of Charlotte Marie Pomeline Casiraghi, the daughter of Princess Caroline of Monaco and granddaughter of Grace Kelly.

Miguel de Cervantes invented this elaborate-sounding name -- which roughly translates as "sweetness" -- for the beautiful maiden Don Quixote is obsessed with in his great novel. Even in the fictional world of the book, though, Dulcinea is not the woman's real name; Aldonza is. And because she never appears in person in the text, it's unclear whether she is as beautiful and saintly as the protagonist believes her to be. Probably not, given Don Quixote's track record.

This romantic, ethereal name sounds straight out of Arthurian legend but is in fact a modern hybrid of Guinevere and Lili.

Lucienne is a soft and ultra-sophisticated French-accented option in the Lucy family, one that could provide a fresh alternative to such fatigued Gallic choices as Danielle and Michelle.

This old-time fairy tale name is rarely heard in the modern English-speaking world, but it's so, well, mellifluous, that it would make a lovely choice for a twenty-first century girl--a romanticized tribute to an Aunt Melissa or Melanie.

With historical roots as a beautiful and intelligent ancient queen and literary ties to Hawthorne and Edith Wharton novels, this rarity could appeal to adventurous parents seeking the romantically unusual. Tina Fey used it as her daughter Alice's middle name.

Leontine is the French form of a name that's more familiar by its spelling variation Leontyne, the name made famous by opera diva Price. An obscure choice, Leontine nevertheless feels right for our lion-name-crazed moment.

Peridot is the gem of the month of August, a vibrant green mineral, said to be good for helping people put the past behind them, and an interesting, undiscovered jewel name. It was regarded in ancient times as the symbol of the sun.

Veronica seems poised to rise again, along with many other V names, and with it may follow this more romantic French version.

Not only are individual flower names more popular (and out-there) than ever, but so too are the more generic names like Florence and Flora. While brother name Fiorello became known via long-term New York Mayor LaGuardia, the lovely Fiorella has never crossed cultures. She could join Arabella as a post-Isabella ella choice.

We are hearing more of such heavenly names as Celeste and Celia, which opens the door to the range of lovely variations rarely heard before. Celestina is one of them, though given the more accessible options, it may be gilding the lily.

Curiously appealing, in a hoop-skirted, wasp-waisted way, Ottoline has recently entered the realm of modern possibility, especially since Sienna Miller chose it as the middle name of her daughter Marlowe.

This intriguing name of an ancient Etruscan queen renowned for her prophetic powers was long associated with the prima ballerina Tanaquil LeClerq.

Famous as the long-suffering wife of the philosopher Socrates.

Variant of Sylvana

Amabel is an older name than Annabel and a lot more distinctive. Amabel was a very common name in the twelfth and thirteen centuries, then was revived during the nineteenth century British fad for medieval names.

Cerelia is a melodic and unusual choice, perfect for a child born in April or May. Another version is Cerella.

Caledonia is a rhythmic and alluring place name used by singer Shawn Colvin for her daughter. It would make an interesting and apt choice for a girl with Scottish ancestry.