Bonnie is an adorable nickname name, heading back up the popularity list after a 50-year nap. A Top 100 girls' name throughout the rest of the English-speaking world, Americans are later to jump on the Bonnie bandwagon but now it's trending here too.

In the 1930s, Dorothy left Kansas and landed in the Land of Oz; by the '80s she had become a Golden Girl, living in Miami with roommates Blanche and Rose, giving her a decidedly older image. But parents today seeking a quiet classic are bringing Dorothy back—she reentered the Top 1000 in 2011 after almost completely disappearing.

Harry is the medieval English form of Henry, which derived from the Germanic name Heimrich, meaning "estate ruler." Harry was the nickname of all eight King Henrys; it is also a diminutive of Harold and Harrison.

Barnaby, a genial and energetic name with an Irish-sounding three-syllable lilt, is an ancient appellation that manages to be both unusual and highly attractive and deserves to be used more than it is. A sweet-spot name that's a real winner.

Beatrix has a solid history of its own apart from Beatrice, with that final x adding a playful, animated note to the name's imposing history and stately vibe.

Bridget is the Anglicized form of Brigid, an Irish-Gaelic name that was derived from the word brígh, which means "strength."

Spencer is a name that has everything: it's both distinguished sounding and accessible, dignified but Spencer Tracy-like friendly. Picked by several celebrities (a couple of times even for a girl), adding up to an enthusiastically recommended choice.

Angus is a traditional yet stylish choice in the UK, especially in Scotland. And it's a cool choice for US parents too, particularly those whose roots go back to Glasgow. The ancient Celtic form Oenghus has important historical overtones in Scotland, and the Gaelic form Aonghas is associated with two distinguished modern poets. In Irish folklore, Angus Og is a chieftain-lord who used his magical powers for the pleasure and prosperity of mankind--and in Irish myth, Aonghus was the god of love and youth.

X marks the spot in names these days, usually at the middles or ends of names, but here is one that puts it squarely up front.

First-wave Irish name and place name—the poetic name for Ireland—now supplanted by newer alternatives such as Maeve and Delaney.

Alana, in all its various spellings, was at one time reserved for daughters of dads named Alan, but is now much more widespread. It came into prominence via model/actress/celeb spouse Alana Hamilton Stewart.

Effie is the old-fashioned short form for Euphemia. It shares a vintage charm with Hattie and Letty although is much rarer than either. Effie is a character in The Hunger Games and Sisterhood of the Traveling Pants.

Jackson is one of those names that's much more popular than you think, coming in near the top of our annual Playground Analysis, which ranks names by grouping all their spellings together. Last year, more than 13,000 baby boys were named Jackson -- along Jaxon, Jaxson, Jaxxon, Jaxen, Jaxyn, Jaxsen, and Jaxsyn -- which counted together makes it the Number 5 boys' name.

Eabha, along with Aoife and Aoibhe and even the Anglo Ava, are all Eve sisters or soundalikes in the Irish Top 100. Outside of Ireland, though, this Gaelic spelling would prove difficult. Confusingly for English speakers, this name beginning with E is pronounced as Ava, while the A-beginning Aoibhe is like Eva.

Amos is a robust biblical name that's being discovered by a new generation of parents in a major way. Similar to other popular choices like Amias, Asa, Moses, and Thomas, it has a contemporary air with plenty of history.

As modern as it sounds, Blaise is an ancient Christian martyr name. In Arthurian legend, Blaise is the name of Merlin the Magician's secretary. Its relation to the word and name Blaze gives it a fiery feel. Amanda Beard named her baby boy Blaise Ray.

Bobby is the quintessential mid-century nickname, the name of the son on Mad Men and overused to the point of cliche. Though Robert is still a highly popular choice, most Roberts today are called by their full name or Rob or Robbie rather than Bob or Bobby.

Cute kid with freckles, bouncing a Spalding ball. Cool couple Helena Bonham Carter and Tim Burton put the name Billy Burton on their son's birth certificate. While the classic William, name of the future king of England, may in fact be German, the nickname Billy along with such other classic short forms as Jim and Joe are authentically English names for boys.

This lovely surname of the three novel-writing sisters, now used as a baby name, makes a fitting tribute for lovers of Jane Eyre and Wuthering Heights. While the original name took an umlaut over the e, modern English speakers may find that more trouble than it's worth (though big fans of the Brontës may well disagree).

In Celtic lore, Fergus was the ideal of manly courage, making it a charming, slightly quirky Scottish and Irish favorite.