Magical and earthy, sophisticated but off-beat, Persephone appears as the daughter of Zeus by Demeter in Greek mythology. 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 change of seasons. As such, she is both the goddess of the Underworld and of Spring.

Hadley, most famous as the name of Ernest Hemingway's first wife, is more sophisticated, professional, and modern than cousins Harley, Haley, or Hayden. The hit book The Paris Wife, a novel by Paula McLain told from the point of view of Hadley Hemingway (born Elizabeth Hadley Richardson), has helped popularize the name, which also appears on the vampire show True Blood. Hadley could become this generation's Hailey. Adley, a mashup of Hadley and Addie, has also appeared on the scene.

Sunday is among the most usable of the day names with its sunny first syllable, its sweet sound, and its potential to be both a sassy or a spiritual choice. The name initially made headlines in 2008 when Nicole Kidman and Keith Urban chose it for their daughter, Sunday Rose. Although it had been widely written that Kidman and Urban named their baby after art patron Sunday Reed, Kidman says this was a myth, they just liked the name.

Currently in the US Top 300, Saylor finds the middle ground between the popular and unisex Taylor, and the more unexpected, wordier Sailor. In fact, it is currently used more often than either of its sound-alikes.

Thanks to two cultural influences, January has joined March, April, June and August as a plausible month name.

Hilary (also spelled with two 'l's) is a hot potato of a name, so closely identified with Sen. Clinton that it's hard for most parents to see it as a baby name. A pity, really, as it's got so much going for it: the popular, rhythmic three-syllable structure, the fact that it's strong but light, proper but jaunty, with an irresistible meaning -- having the same root as hilarious.

State name Alaska stems from an Aleutian word for the land mass itself. The number of baby girls named Alaska has doubled in the past five years, and is sure to continue increasing as more place names are annexed as baby names. Wilder but as habitable as Dakota or Cheyenne, Alaska is a girls' name choice for the future.

A fun and confident choice, Holiday is a celebratory name, particularly associated with Thanksgiving, Christmas, Hannukah, and New Year, and with rest, leisure, and vacations more generally. Fitting for a winter baby, but totally sunny too, it comes from the Old English hāligdæg meaning "holy day" as it was originally used to mark religious festivals and celebrations.