Girl Code

Alice is a classic literary name that's both strong and sweet, ranking in the US Top 100 and popular throughout the western world. Alice is derived from the Old French name Aalis, a diminutive of Adelais that itself came from the Germanic name Adalhaidis, which is composed of the Proto-Germanic elements aþala, meaning "noble," and haidu, "kind, appearance, type."

Widely used here since the fifties, Allison -- a derivative of Alice -- has now been once again surpassed by the original Alice as parents embrace vintage revivals. Despite this, Allison's popularity has held strong, and it remains steadily within the Top 100. Allison's status is challenged by up-and-coming "-son" names, from Addison to Emerson. The freshest Allison alternative may be Ellison, which adds the appeal of trendy nickname Ellie as opposed to falling nickname Allie.

During its Top 10 heyday in the late 90s and early oughts, Andrew was one of the "cooler" classic boy names, an update on the old guard Roberts and Richards.

Once the most popular month names, April has been overtaken by June (for girls) and August (for boys), as well as the charmingly old-fashioned May. Literary reference: the heroine of the book and movie Revolutionary Road, and there have been Aprils on Parks and Recreation, Glee, and The Vampire Diaries. Trivia note: comedian Ralphie May named his daughter April June May.

Carlos is the Spanish and Portuguese variation of Charles, which has been used in solid numbers in the US for as long as data has been kept. Carlos has never fallen out of the Top 600, but peaked from the 70s-early 2000s. Today Carlos is still within the Top 200. Notable namesakes include musician Santana, writers Fuentes and Castaneda, and numerous athletes. Carlos Irwin Estevez is the birth name of Charlie Sheen.

Though a couple of its more "creative" spellings—Carli and Karlee, for example—are still on the rise, this feminine form of Carl, popularized by singer Carly Simon in the 1970s, could by no stretch be considered fashionable. Despite its decline, the name has still seen some use in the entertainment industry, from Nickelodeon's iCarly to Canadian pop singer Carly Rae Jepsen.

Carter has ranked in the Top 100 since the the turn of the millennium, but despite its recent popularity, it's not a trendy new name. In fact, Carter is one of those names that just misses ranking in the US Top 1000 for its entire 140+ year history.

Chris is a long-running nickname used almost equally for boys and girls. While past its prime, Chris stands out as sounding completely appropriate for both sexes, perhaps because of its widespread use as a short form of both the popular Christopher and Christine. Chris manages to retain its crisp appeal even though its fashion moment is over.

Esther was derived from the Old Persian word stāra, meaning "star." In the Old Testament, Esther, originally named Hadassah, was the captured Jewish wife of the King of Persia who risked her life to save her exiled people from annihilation. This story is celebrated by Jews on the holiday of Purim, so that it has traditionally been given to girls around that time.

Jamie is typical of the relaxed unisex names starting with J that seemed so cool in the sixties after decades of Jeans and Joans, though now pretty tepid. Jaime and even Jamey and Jayme are alternate spellings.

The ultimate dad name.

Jordan became one of the top unisex baby names in the heyday of basketball's Michael Jordan, and is still among the most popular unisex names starting with J. The name was originally given to those baptized in holy water brought back by Crusaders from the River Jordan, the only river in Palestine, and the one in which Christ was baptized by John the Baptist.

The original brief, breezy name is somewhat out of favor now even as a middle name. The Leigh spelling has more substance and is more identifiable as female.

Though ancient, Marcus now sounds more current than Mark, in tune with today's trend towards us-ending Latinate names.

Gone with the Wind inspired a generation of girls named Melanie, though it looks as though Scarlett will triumph in the end.

Like its cousin Tessa, Nessa -- a shortening of Vanessa or Agnes or Anastasia among other possibilities -- is an attractive nickname that can stand on its own.

Nicole was derived from Nicholas, the English variation of the Greek Nikolaos, composed of the compounds nike, meaning "victory," and laos, "people." The variation Nicole arose in the Middle Ages in France to honor St. Nicholas. Names related to Nicole include Colette, Nicolette, Nika, Nicola, and Nicolina.

Quinn is one of the first popular Irish unisex surnames, a strong and attractive choice on the rise for girls but still popular for boys. Quinn was used for about 3000 baby girls and 700 boys in the US last year.