Aravis was the name of a female character in C.S. Lewis's A Horse and His Boy, and is also the name of a mountain range in southern France. With the rise of Ava, Avery, and indeed seemingly all names that start with A, Aravis may finally reach a wider audience.

Aravis

Aslan

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. 
 
The name Caspian is ultimately derived from the Latin term Caspii, meaning "white." Caspii was the name of the people of Central Asia who were originally from Caucasus. 
 
Caspian is attracting a lot of attention from cutting-edge parents these days. It fits in with several trends as a name from classic children's literature, a water-related place name, and an ancient name with the trending Cas- beginning, ala Cassius and Cassian.

Caspian

Corin was used by Shakespeare in As You Like It, an unusual name that could make a more distinctive alternative to Corey or Colin. It is a name used in the illustrious Redgrave family of actors.

Corin

Digory

The sophisticated Edmund and its nearly-identical French twin Edmond are coming out of mothballs now that Edward, inspired by Twilight, is once again a hot name.
 Edmund has had an enviable history, as evidenced by these quotes: "There is nobleness in the name of Edmund," says a Jane Austen character, and the poet John Keats once bemoaned, "Had my name been Edmund, I would have been more fortunate."
 Famous bearers include the English astronomer Edmund Halley, after whom the comet was named, poet Edmund Spenser, great Shakespearean actor Edmund Kean, and New Zealand mountaineer Sir Edmund Hillary. Literary Edmunds appear in King Lear,, Jane Austen's Mansfield Park, and Dickens's Little Dorrit.
 Edmund reached its highest point of popularity in the U.S. in 1914, when it was Number 130; it hasn't appeared on the list since 1997--making it even more attractive as an uncommon alternative to Edward.
 Eamon is the cheery Irish version.

Edmund

Eustace was originally popularized by St. Eustace, who was born a Norman nobleman and is said to have been converted to Christianity by seeing a crucifix between the antlers of the deer he was hunting. It was introduced to England by the Normans, and can be found in medieval legend. In literature the name appears in the person of Eustace Clarence Scrubb in C. S. Lewis's The Chronicles of Narnia.
<bre/> The image of Eustace today is as sedate and stuffy as the monocled Eustace Tilly character on The New Yorker magazine covers. Its diminutive Stacy became a unisex hit.

Eustace

Emeth

A Top 10 name from the 1880s until the 1920s, Frank has been falling for decades but last year reversed course for the first time in a century, edging up the popularity list a few notches. And Frank still has a certain warm, friendly real-guy grandpa flavor that could come back into style, like other such choices as Jake and Jack. 
 
Maybe thanks to Sinatra, it's become a new hipster favorite with such couples as Diana Krall and Elvis Costello. Along with Sinatra, Frank has a wide variety of interesting namesakes, including architects Frank Lloyd Wright and Frank Gehry, artist Frank Stella, director Frank Capra, musician Frank Zappa, and Muppeteer/director Frank Oz, to name a few. Musician Frank Ocean was born Christopher Breaux.
 
It's worth noting that despite its long decline, Frank has always remained in the Top 500 for boys. Also, the newly-cool girls' nickname-name Frankie may have given brother Frank a style boost.

Frank

Helen is a name that has connoted beauty since ancient times – Helen of Troy was the the mythological "face that launched a thousand ships," over whom the ten-year Trojan War was fought. 
 

The name Helen has moved in and out of favor over the centuries, often alternating with Ellen. It was a Top 5 name for several decades of the early twentieth century, falling out of the Top 100 in the 50s. Now, after being unfashionable for decades, we see signs of a comeback for Helen—it's the kind of serious, unadorned classic many parents are returning to.
But if Helen still feels too plain for you, you might consider one of its many lovely variants: Helena, Elena, Eleni, Ella, Nellie or Nell, to name just a few.

 In Greek myth, Helen is the daughter of Leda and Zeus, who came to her mother in the form of a swan. Helen also has legions of real-life namesakes, including author and activist Helen Keller, politician Helen Gahaghan Douglas, newspaper reporter Helen Thomas, Cosmo force Helen Gurley Brown, Bridget Jones creator Helen Fielding, artist Helen Frankenthaler, and actresses Hayes, Mirren, and Hunt. Beatrix Potter's birth name was Helen.

Helen

Queen Jadis, also known as The White Witch, is the main villain in The Chronicles of Narnia. She is the force responsible for freezing Narnia and creating the Hundred Year Winter.

Author C.S. Lewis may have based the name on both its etymological derivations, which basically mean a magic witch from long ago.

Although Jadis might be considered a purely literary name, it was used for about a dozen baby girls in the US last year.

Jadis

Probably due to its nursery rhyme association, Jill has the perpetual air of a rosy-cheeked tot -- even though it is one of the oldest names on the roster, a medieval variation on the Roman Julia. The pairing of Jack and Jill to connote a generic boy and girl goes back at least to the fifteenth century. But can knowing Jill's history keep it from sounding like a cute mid-twentieth century invention? There may be some possibility of Jill making it back up the hill. 
 Jill entered the Top 100 in 1957 and held that position until 1983, dropping off the list completely in the year 2000. A notable present bearer is Jill Biden.

Jill

A versatile classic, Lucy is both sweet and solid, a saint's name, and the heroine of several great novels. First fashionable in England and Wales, Lucy is now a popular choice in the US, The Netherlands, and New Zealand.
 
The English form of the Roman Lucia, Lucy derives from the Latin word lux, meaning “light.” Once given to girls born at dawn, Lucy is also associated with Saint Lucia, the patron saint of the blind.
 
Lucy has a wide range of namesakes, from the bossy friend in the Peanuts comic, to psychedelic "Lucy in the Sky with Diamonds," to the rash and zany heroine of I Love Lucy. 
 
It is a name with a rich literary history, chosen for the heroines of Charlotte Brontë’s novel Villette, E.M. Forster’s A Room With A View, Jamaica Kincaid’s Lucy, and C. S Lewis’s The Chronicles of Narnia - just to name a few. 
 
Beyond fiction, Lucy Stone was an important American activist, Lucy Worsley is a successful author and historian, and Lucy Lui is an actress who has imparted strength and style to the name.
 
Simple but sophisticated, playful but grounded, it is no wonder Lucy is a popular choice. Given to over 4000 girls in the US each year, it is a classic that doesn’t feel dusty.
 
If you love Lucy, but don’t love its popularity, you could consider one of its many variants. From vintage Lucille, to the musical Lucetta, to the fresh, unexpected Lux; from nickname-y Lou to sleek Luciana, there are plenty of possibilities.

Lucy

Peter is derived from the Greek Petros, meaning "rock" or "stone." One of the most important figures in the Christian hagiography is Saint Peter, keeper of the Gates of Heaven. Born Simon bar Jonah, he was given the nickname Peter by Jesus, to signify that he would be the rock on which Christ would build Christianity. Centuries later, there was Peter the Great, the czar who developed Russia as a major European power.
 
For generations, there have been pleasant childhood associations with this classic New Testament name, what with Peter Rabbit, Peter Pan, et al. But as user-friendly as this makes the name, it has a solid, traditional side as well.
 
Never as widely used as some of the more traditional Anglo-Saxon stalwarts, Peter retains an enduring appeal to parents seeking a less-used classic, with those nice childhood associations. Peter also has some interesting derivatives: The Brits like Piers; the Irish, Pierce and Pearse; the Italians, Piero and Pietro; the Spanish, Pedro; the French, Pierre; and the Dutch, Piet.
 
One potential problem: in some parts of the world, "peter" can be a slang term for "penis".

Peter

An alternative to the no-longer-fresh Molly, the initial 'P' gives Polly a peppier sound, combining the cozy virtues of an old-timey name with the bounce of a barmaid. 
 Associated with Tom Sawyer's aunt, 'Polly, put the kettle on,' parrots, Polly Peachum, Nirvana and Kinks songs, and the movie Along Came Polly, as well as characters in Noel Streatfeild's Ballet Shoes, C.S. Lewis's The Chronicles of Narnia and now on the Netflix show Orange is the New Black, Polly never achieved the comeback that her cousin did, perhaps because she sounds too Pollyanna-ish. But although she has been off the Social Security list for decades, Polly is Number 457 on Nameberry.
 But we'd love to see some new baby Pollys.

Polly

Among a small shower of rain-related names, this pure version can have a cool, refreshing image. 
 Richard Pryor named his now-grown daughter Rain, and Rain is also one of the nature-named Phoenix family siblings. More recently, 24 actress Marisol Nichols named her daughter Rain India.
 Rain also makes a nice nature middle name--Brooke Burke called her daughter Heaven Rain.
 If you want to embellish this simply spelling (and alter the meaning), you might also consider Raine, Raina, Rainn, Rayne, Reine or Reign, the middle name of Willow Smith. Or you could take the Holly Madison route all the way to Rainbow.

Rain

Rilian

Although Susan had her heyday from the thirties to the sixties, and is now common among moms and new grandmas, and though most modern parents would prefer Susanna/Susannah, we have spotted some flickers of interest in a revival. It still retains a certain black-eyed-Susan freshness.
 
Susan has a substantial literary resume, including appearances in George Eliot's Mill on the Floss, Anthony Trollope's Barchester Towers, Thomas Hardy's The Mayor of Casterbridge and Jude the Obscure, and Charlotte Bronte's Shirley.
 
Susan's many nicknames include Sue, Susie, Suzy, Sukie, and Zuzu—many of which have been celebrated in song. Among Susan's notable namesakes are activist Susan B. Anthony, writer Sontag, and actress Sarandon.

Susan

Shasta

Tirian

Tumnus

Fire Fairy's list "Chronicles of Narnia Baby Names" of 22 great name ideas: Aravis - Tumnus!

Chronicles of Narnia Baby Names

A collection of names from all seven books of the Chronicles of Narnia.