Mila is a popular name that took a 125 year nap, ranking in the Top 1000 in 1881 and then not ranking again until 2006, after actress Mila Kunis appeared on That 70s Show.

Effortlessly stylish with an international feel, Milan re-entered the US charts back in 2013 after a 55 year hiatus. It has been powering up the charts ever since, following in the footsteps of sweet sound-alike Mila, and spotlighted by singer Shakira, who chose it for her son.

In many Slavic and other European countries, Milan is purely a boys’ name, but in the US, it's also popular for girls – no doubt inspired by the fashionable Italian city. It entered the Top 1000 for boys in 2013, while for girls it has been in the Top 1000 since 2009. Currently, it is given to three boys for everyone one girl.

Beach boy name of the 1960s, Darrell is still a presence on the charts and may graduate into a stately surname name.

Levin, known in the U.S. mostly as a surname, is a Top 100 boys' name in Germany. There have been saints with variations of this name, whose meaning relates to love.

Upper-crusty nickname occasionally used in Britain, particularly in 1930s novels featuring significant garden party scenes, but eclipsed here by Carrie et al.

Carina is a pretty delicately feminine name whose fall from popularity is not helped by its similarity to hurricane name Katrina or slang victim Karen.

Enough parents have found naturalist Charles Darwin, the father of the theory of evolution, a worthy hero to keep Darwin relatively consistently in the Top 1000. It has a lovely meaning too—"dear friend."

A twist on Darwin with the same friendly meaning. Its lovable-nerd feel is given a cool edge by several football players with the name.

Rhythmic and energetic, Drury is of French origin, with the wonderful meaning of "dear one, sweetheart."

A cross between Cherie and Sherry, neither of which have crossed into the 21st century.

This name relates to Oisin, a famous ancient Irish poet, the son of Finn MacCool.

Definitely a far stretch for any child.

Once exclusively male name, Daryl Hannah made the Darrell spelling just as appropriate for girls -- and maybe even more feminine than masculine these days.

The meaning is endearing, but it also feels uncomfortably like a short form for Caroline. Its artistic reference is British sculptor Anthony Caro.

Dariel is one of many similar forms and variations of different names—Dara, Dariela, Daria and Darya—that are all unusual and pretty if not quite authentic-feeling.

Albert Einstein's first wife was Mileva Marić, a Serbian student and his classmate at the Zurich Polytechnic (her childhood nickname was Mitza.) With the newfound popularity of Mila, this obscure Old Slavic name may be discovered outside of its native land.

Darling has history as an English surname, but it would most likely be read as a quirky and loving word name, a la Sweetheart or Honey.

Lleucu is often considered the Welsh equivalent of Lucy, as it shares the same meaning of "light", and a similar sound. (Lwsi and Liwsi are the phonetic Welsh spellings of Lucy.) It's a statement choice even within Wales, and the spelling/pronunciation would make it extremely bold in other countries.