Two syllables.

Nora is a lovely, refined name that conjures up images of Belle Epoch ladies in fur-trimmed coats skating in Central Park. Long seen as a quintessentially Irish name though its roots are not in Ireland, Nora is a quietly stylish favorite that's tiptoed to the top of the popularity ladder.

Nova has the feel of both newness, from its meaning, and great energy as an astronomical term for a star that increases suddenly in brightness before fading.

Orla is an Irish name closely associated with the high king Brian Boru, as it was the name of his sister, daughter and niece. It was very popular in the Middle Ages – the fourth most popular name in twelfth century Ireland – and has become popular again in Ireland, Scotland, England and Wales today. In Irish, the name is commonly spelled Orlaith or Orlagh.

Percy is an adorable old name that is finally shedding its pampered Little Lord Fauntleroy image in this new era of boys with soft yet traditionally male names like Jasper and Elijah. Originating as an aristocratic Norman name, Percy became fairly widespread in England--and to some extent in the US--as an offshoot of the fame of the poet Percy Bysshe Shelley.

Remy is one of the hottest names today for both boys and girls, sometimes spelled Remi. . It entered the popularity list in 2009 and has quickly become one of the fastest-rising names on the list.

Rena is a Hebrew name all on its own and is also a European short form of Irene, Irini, Renata, and Renate. In Punjabi, Rena means "to remain".

Old-style creative name of the Greek mythological earth mother of all the gods. A lot better than the Roman equivalent: Ops. Rhea reentered the US Top 1000 in 2015. Its only previous appearance on the list since 1968 was 2004.

Rilla dropped out of the US Top 1000 in 1915, but it's starting to feel like an intriguing possibility again in this age of short, sweet, a-ending names for girls. It is traditionally a short form for names ending in -rilla, like Marilla from the Anne of Green Gables books (Anne's youngest daughter is Bertha Marilla, called Rilla for short). Rilla may also derive from the German word Rille, meaning "brook; stream".

Vibrant, sassy, and bubbly, Ruby is a vintage gem that hasn’t lost any of its sparkle. Currently popular in a number of English-speaking countries, Ruby is proof of the 100 Year Rule, trending again for the first time since its heyday in the 1910s.

Sadie started as a nickname for Sarah, but their images couldn't be more disparate. Where Sarah is serious and sweet, Sadie is full of sass and fun.

Sleek and smart, with a hint of mystique about it, Silas is a recent addition to the US Top 100. Both mythological and Biblical in origin, Silas joins the ranks of Isaiah, Atlas, Elias, and Sebastian: polished and contemporary feeling names with plenty of history.

Though modern parents seeking to honor an ancestor named Thelma might opt for the airier Thea instead, Thelma is starting to make its way back onto adventurous vintage name lovers' radars. It is currently experiencing a modest revival in France, where it now ranks around the #300 mark.

A solid classic with plenty of history, Thomas strikes the balance between strength and gentleness. A favorite in the UK, a staple in France, and Australia, and never absent from the US Top 100, Thomas feels like a safe bet and a name that fits into any era.

Thora, related to Thor, is the ancient Norse thunder goddess name that's much softer and gentler than its meaning suggests. A noted bearer is actress Thora Birch.

Actress Tilda Swinton injected this dated nickname name with some modern charm.

A familiar name in the Nordic countries that hasn't yet gained popularity in the English speaking world. But it could, now that Old Norse names like Thor and Odin are on the rise. It derives from Torbjörrn, which seems less likely to translate outside Scandinavia. But if you're looking for Danish names for a baby boy, Torben could be a choice that's both accessible and unusual.

Innocent, sincere, and bright-eyed, and as outdated as its mother name, Gertrude.

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.