Talented actress Rooney Mara (originally born Patricia Rooney) has single-handedly transformed this Gaelic surname into a wearable and elegant girls' name. Often said to mean "red-haired", the original surname, rendered as O' Ruanaidh, actually means "descendent of the champion". Trivia note: the most famous Rooney, Mickey Rooney, was originally born Joseph Yule.

Uma is a sweet, strong name for a Hindu goddess... and a Hollywood one. But as popular as Uma Thurman is, other parents have not yet picked up on her name, making it a rarity.

In the 1950s and 60s, Susie was the name every little girl wanted for her very own.

Tansy is a flower name rarer than Rose, livelier than Lily and a lot less teasable than Pansy.

Sweet, enchanting Lilou is considered both a pet name from the Occitan language (spoken in Provence in the south of France), and a compound name, blending floral Lili with classic Louise. It peaked in France back in 2009 when it reached #12, and while it has now fallen in popularity, it remains in the Top 200.

To the non-Scandinavian ear, a cute and unusual nickname name, used by Finnish supermodel Suvi Koponen. It has a zippy, yet sunny feel to it, and could make an interesting alternative to Susie.

Cute short form of Esther, now associated with the iconic nail polish brand.

After a century of association with horses and cows, this name just could be ready for revival by a fearless baby namer -- after all, it did happen to Jessie and Becky.

Attractive, underused name made famous by the heroine of The Color Purple. Still, if you're going to go to Celie, why not go all the way to Celia or Cecelia? You can always use Celie for short.

Marcy is about as hip as bobby sox and saddle shoes – which is to say, it's probably due a revival in the not-too-distant future! It was a typical Peanuts character name, which peaked in the seventies, but is starting to attract attention again across the pond, where soundalikes like Macy, Marnie, Maisy, Darcy and Lacey are already popular.

Judy was the nickname of choice for almost all the Judiths born in the 1940s and 50s; today's little Judiths are much more likely to be called Judith -- or, possibly, Jude.

A sweet-meaning and sounding name dating back to the Roman Empire, and later found in the antebellum South, Dulcie has in the modern era been heard most often in Australia.

With Stevie, Scottie, and Charlie on the rise, and Lula, Lucy, Eloise, and Lucia all in style, we're predicting a rise in baby girls called Louie. Fitting the "boyish-nicknames-for-girls" trend, it may additionally be used as a nickname of classic Louisa and Louise.

Sweet and cosy but with substance too, Sosie is a rare, multicultural name. Used as a short form of Susan, Sosan, Sophie and Sophia, it could make a fresh alternative to Suzy, Izzy, or Josie; alternatively, it's an Armenian name in its own right, derived from Sosi meaning "palm tree".

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

Unique and unusual as a nickname and a stand-alone name, Loie is a vintage choice worth reviving. It is traditionally used as a short form of Lois and Louise but would work as a nickname for any Lo- starting name, or even names such as Laura, Eloise, and Charlotte.

Cedric the Entertainer chose this for his daughter, but most other parents would find it, though optimistic, not exactly substantial.

Lettice is still occasionally heard in upper-class British families, but we fear it would cause too much salad-green teasing to be considered in the U.S. Calling your little Lettice Lettie could help make the name more user-friendly, or go all the way to the original Letitia.

Lilo is the name of the spunky little Hawaiian girl character in the Disney movie Lilo & Stitch-- and is also Lindsay Lohan's nickname. Multi-cultural, it can be found in Hawaiian, German and Hebrew nomenclature.

Cute, nickname-y, and international, à la Romy or Demi. Spelling it Orly turns it into a busy French airport.