Milo is most commonly considered to be Germanic name derived from the Latin word miles, meaning "soldier." However, there is evidence to suggest it also may have independently spawned from the Slavic root milu, meaning "merciful." Milo predates brother name Miles, a variation that evolved when the name immigrated to the British Isles in the Middle Ages. Mylo is an alternate spelling.

Felix is one of those ancient but nontraditional names for boys that have come into favor over the past few decades, a favorite of parents who want a masculine name with history and heft that breaks ranks with the standard Franks and Freds. Felix is also an international darling, ranking in the Top 100 in several European and English-speaking countries.

An aristocratic and stately Germanic route to the popular Leo, Leopold is a royal name: Queen Victoria used it to honor a favorite uncle, King Leopold I of Belgium. These days, this royal tie may be seen as a drawback to the name, owing to the cruelty of King Leopold II's rule over the Congo, though it remains popular in Austria, Poland, and France (as Léopold).

A truly international choice, the sweet and simple Mira has its origins in Sanskrit, Latin, Slavic, and Arabic, just to name a view. With its arty aura and succinct look, it makes a versatile option, much like the similar Nina and Mina.

Ezra has a lot going for it: the strength of its heroic Biblical legacy, its quirky sound, and its fresh but familiar feel. Ezra is now at its highest point ever, but its intuitive streamlined spelling and deep roots could make it a worth successor to Elijah in the Top 10 -- or even to Liam or Noah at Number 1.

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?

Vera was the height of fashion in 1910, then was for a long time difficult to picture embroidered on a baby blanket. Now, though, it has come back into style along with other old-fashioned simple names such as Ada and Iris.

Cleo, one of the few girls' names to boast the cool-yet-lively o ending, is of course short for Cleopatra, the name of one of the most powerful women in history.

Sofia is a refined variation of the Greek name Sophia, which was derived directly from sophia, the Greek word for wisdom. It was the name of a Roman saint—the mother of Faith, Hope, and Charity—and queens of Russia and Spain.

A classic in its native Scandinavia, Axel has a cool rock 'n' roll flavor in the US, thanks to Guns N' Roses' Axl Rose (born William). With its distinctive letter 'x', it has an effortlessly cool vibe about it, and is currently growing in popularity.

Serena, a name used since Roman times, was given fresh life by tennis star Williams, and then again with the leading character on Gossip Girl, Serena van der Woodsen. There have also been Serenas on soap operas and other shows from Bewitched to Law & Order.

Ruth, with its air of calm and compassion, was the third most popular name in the 1890s, remaining in the Top 10 through the 1920s. It's still in use today as some parents tiring of Rachel and Rebecca are giving Ruth a second thought. Some see such Old Testament girls’ names as Ruth and Esther rising on the heels of boy equivalents Abel and Moses.

Nadia, an accessible Slavic favorite, has a strong run of popularity in the US in the early 2000s, partially thanks to the character on Lost called Nadia but actually named Noor, but it's since slumped down the rankings. An earlier inspiration was Romanian gymnast Nadia Comaneci, who won the 1976 Olympics.

This name of a Roman emperor and of a sedating plant is still used quietly, given to about a dozen baby boys in the US last year. It has a strong, rhythmic sound and could make a modern-feeling honor name for grandma Valerie.

Haunting biblical and Civil War place-name; now unisex—especially after the mega-high-profile Brangelina couple picked it for their daughter. It debuted in the Top 1000 for boys in 2015.

Valeria -- the original form of the name, used by early Christians --has been experiencing significant popularity in recent years. While Valeria was nearly always on the charts, the name peaked in 2009 at #72, surpassing the longtime Franco-American version Valerie. Today Valeria and Valerie are at about equal rankings, sitting in the 150s.

A soft and interesting Hebrew name long popular in France, where it has ranked in the Top 400 since 1986 (as Salomé). Ex-ER star Alex Kingston named her daughter Salome Violetta.

A name with religious resonance, as the Vedas are the most sacred texts of Hinduism. Outside of that religious context, Veda has the makings of a modern popular name, with its sharp V initial, two syllables, and feminine a ending. This is evidenced by it reentry into the US Top 1000 in 2015, after fifty-five years off the list. Similar names on the rise are Vera and Vada.

Hilary may feel too connected to a single personality, but this version offers a fresh and interesting alternative.

Priya originated in India as a name derived from the Sanskrit word for "beloved." In India, where names are often given based on one's birthday and horoscope, Priya is traditionally given to girls born in August. Priya is used in Hindu mythology as the name of a daughter of King Daksha—known for fathering 146 daughters.