Frozen Fairytale

Oona is a name made famous by Eugene O'Neill's daughter, who became Charlie Chaplin's wife. One of the original Oona's granddaughters was named after her, and is now an actress famous in her own right for playing Talisa of Volantis in HBO's "Game of Thrones." The double-o beginning gives their name a lot of oomph.

Floral, elegant, and bold, Ophelia re-entered the US Top 1000 in 2015 after more than 50 years off the charts. It has risen more than 700 spots since then and shows no signs of slowing down. Now in the US Top 300, could Ophelia one day become the next Olivia or Amelia?

As elaborate O names such as Olympia and Ophelia gain popularity, Orithyia seems more and more usable. It's the name of several women in Greek mythology, including Orithyia, Queen of the Amazon, who co-ruled with her sister Antiope.

In Germanic mythology, Ostara is the goddess of springtime, fertility, and dawn. Her existence as a mythological figure was pieced together by scholar Jacob Grimm, who used evidence such as the German word for April (ostermonat) and parallels to the Anglo-Saxon Eostre. Ostara is also the modern German name for the Easter holiday.

Persephone is the esoteric name of the Greek mythological daughter of Zeus by Demeter, the queen of the harvest. After she was kidnapped by Hades to be Queen of the Underworld, it was decreed by Zeus that she would spend six months of the year with her mother, allowing crops to grow, and six in mourning, thus accounting for the seasons.

This name of a tragic figure in Greek mythology, the daughter of King Minos, sister of Ariadne and wife of Theseus, has a mysterious and intriguing appeal, and would make a dramatic choice.

Philomela, the name of a mythological Athenian princess who was transformed into a nightingale, is rarely heard outside the Greek community. The mellifluous Philomela might make a more distinctive and prettier update for Pamela or Phyllis. Philomela may also be a good choice for a music-lover's daughter. Try Pippa or Millie for short.

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.

A quaint and quirky flower name, until recently considered a bit too prim for most American classrooms but brought back to life in recent years by the attractive character of Primrose "Prim" Everdeen in the Hunger Games series. In the Top 300 girl names in England and Wales and on Nameberry, Primrose remains rare in the US, but is made more accessible by a raft of sweet nickname options, including Rosie and Posy.

Despite her somewhat prissy, puritanical air, Priscilla has managed to stay widely used for well over a century -- it reached as high as Number 127 in 1940 -- appreciated for its delicacy and solid history.

The Roman equivalent of Persephone, making her a goddess of spring, and queen of the underworld. Also spelled Proserpine.

Known in America via the wife of Soviet head Mikhail Gorbachev; a possibility for parents of Eastern-European descent wanting to move beyond Natasha and Nadia or for parents from the Middle East looking for a name that works in both cultures.

Rapunzel is famous as the long-haired heroine of the fairy tale, locked in a tower only to fall in love with a handsome prince who climbed to her side via her hair. Rapunzel has never been widely used as a first name the way, say, Aurora -- the mortal name of Sleeping Beauty -- has. Like Cinderella, it's too closely identified with the fairy tale to really take off as a girls' name. In German, it's the name of several varieties of wild-growing, edible leaves. Read more about Rapunzel and other Disney Princess Names in our featured blog.

Bird name Raven, once a symbol of pride for both African-American and Wiccan parents, is finding new life as a superhero name. Raven Darkholme is the real name of Mystique, heroine of the X-Men films played by Jennifer Lawrence. And there is another Raven superheroine in Teen Titans. Some parents may still choose Raven to signal black pride or mystical powers or maybe even Edgar Allan Poe fandom, but we are guessing most inspiration is coming from the comics.

Ravenna is a lovely, untouristed Italian place-name just waiting to be discovered. Renowned for its fantastic Byzantine mosaics, it's a city that has a rich historic and artistic heritage.

If you're looking for an unusual alternative to all those Rose names, Rhoswen might be a good choice. This name has the soft sounds we've come to love from the Welsh language but is still not as familiar as Bronwen and Rhiannon.

Pippi Longstocking author Astrid Lindgren invented the name Ronja for her book Ronja, the Robber's Daughter. She was inspired by the lake Juronjaure, located in Norrbotten, Sweden.