To Infinity!

Declan is the Anglicized form of the Irish name Deaglán. St. Declan was one of the first missionaries to bring Christianity to Ireland, preceding St. Patrick. Originally from Wales, he founded the monastery of Ardmore in Ireland.

In Greek mythology, Elara was a lover of Zeus who gave birth to a giant son (ouch); it's also the name of one of the moons of Jupiter, giving it a celestial feel. Possibly derived from the Greek alara meaning "hazelnut" or "spear", it combines that favorite El- beginning with the popular -ara ending of Clara, Lara, and Amara, making it an all round appealing choice. Currently in the UK Top 1000, and on the rise in the US, it could be a fresher or less popular alternative to Ella, Lyra, or Laura.

The meaning of this ancient Roman god's name relates to transitions, hence its connection to the name of the first month of the new year, a time of fresh beginnings. Janus is usually depicted as a two-faced god facing in opposite directions, since he looks both to the future and the past. It's no surprise then, that Janus is one of the premiere January baby names. The Slavic form Janusz is more commonly used than the English, represented by the Polish cinematographer Janusz Kaminski, who has shot all of Steven Spielberg's films from Schindler's List to Lincoln.

June, a sweetly old-fashioned month name derived from the goddess Juno, was long locked in a time capsule with June Allyson (born Ella) and June Cleaver, but is rising again especially as a middle name.

Jupiter's partner Juno has entered the mainstream, so it's possible that her divine mate could follow. But not necessarily for boys — Jupiter is currently mostly female in the US, thanks to its similarity to Juniper. Stars including Ed Sheeran and Ashley Tisdale recently welcomed daughters named Jupiter, which could shift the balance even more towards the girls.

Larissa is a nymph name that's daintily pretty and a fresh alternative to Melissa or Alyssa. Though this is the more common variation in the Western World, the original is actually Larisa.

Leo is a strong-yet-friendly name that was common among the Romans, used for thirteen popes, and is now at its highest point ever in the US thanks in part to Leonardo "Leo" DiCaprio.

Somewhat flat-footed form; go for the original.

Lumi may be a rare girls' name in the USA and England, but it comes in the Top 50 in Finland, where it means snow. Given the popularity of Winter, Holly, Ivy and many other wintery-christmassy names, we think that short and spunky Lumi definitely has potential for greater usage outside its home country as one of the more unusual names for Christmas babies.

Innovative French word name, suggesting illumination and clarity.

The name of the Roman goddess of the moon, Luna is derived straight from the Latin word for moon, luna. Luna may be the name most likely to surprise someone from an older generation by its Top 10 status in the US and its widespread international popularity.

Lyra is a name with ancient and celestial roots that's finding new popularity thanks to its starring role in Philip Pullman's His Dark Materials series, seen in the movie The Golden Compass. Simple yet unique, Lyra hits the sweet spot between too popular and too unusual.

Melvina ranked in the Top 1000 for over 65 years in the US, coinciding to a large extent with the years its much more popular masculine counterpart Melvin ranked in the Top 100. Today, Melvin is still hanging on in the Top 1000 for boys, but Melvina hasn't been given to more than 20 babies in a year since 1991.

Adventurous parents are starting to look back to names of ancient gods like Mercury, Zeus, and Apollo. This one is also a planet and a metallic element, and has a friendly nickname, Merc. The Roman god Mercury, which derives from the Latin words for trade or wages, is the patron of tradesmen and travelers and the fastest-moving planet in the solar system. Mercury is the planet associated with the sign of Virgo, so this is one of the prime names for Virgo babies.

Nadya and Nadia are Eastern European short forms -- for the more difficult Nadezhda -- now fully accepted on their own.

Could be the next Nova, now that celestial baby names are in the ascendent.

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?