Agatha Christie's Marple

David is an enduring worldwide classic, used from ancient times to the present day.

Although it has come to sound Irish, Dennis is one of the most widely-used French names (St. Denis is the patron saint of France) and harks back even further to Dionysius, the Greek god of wine and debauchery. It was introduced to England by the Normans.

Derek started out as a sophisticated Brit, but the name became so common over the last decades of the twentieth century that it lost much of its English accent, along with its stylish edge. Derek was a Top 100 name in the U.S. for 25 years, from 1970 to 1995.

Dermot is an appealing, relatively undiscovered Irish mythological hero's name long popular in the Old Country, and imported into the American consciousness by actor Dermot Mulroney. We see it in the next Celtic wave following Connor and Liam.

Diana, the tragic British princess, inspired many fashions, but strangely, not one for her name. For us, Diana is a gorgeous and still-underused choice.

Dick was a once-common short form of Richard; replaced by Rick or Richie, and finally by the full name itself. Rude meaning -- make that two rude meanings -- pretty much knocks this one out of consideration.

As the song says, "Dinah, is there anyone finer?" Dinah is a charming, underused Old Testament name with a rich literary and musical resume.

Hello, Dolly! Okay, we couldn't resist, but be warned: Most people who meet your little Dolly won't be able to either. This nickname-name, rarely heard since whatever decade Dolly Parton was born, is singing a fashionable note again along with sisters Dottie and Dixie; it was chosen for one of their twin girls by Rebecca Romijn and Jerry O'Connell.

Donald has been used for centuries in Scotland, where the Macdonald clan is one of the most ancient and where there have been six early Scottish kings by that name. Donald was a Top 20 name throughout most of the early twentieth century. But first there was the quacking Donald Duck, introduced in 1934, to affect its image, and then there was The Donald Trump, leaving it drained of much baby appeal. Trump's surprising run to the presidency didn't save Donald's decline on the baby name charts; it fell 47 spots between 2015 and 2016, from 441 to 488, and is now a less popular name than it's been since records have been kept.

Dora is poised for a comeback, right behind Laura, Nora, Cora, and Flora. First-time parents who haven't watched cartoons in a couple of decades should be aware of the Dora the Explorer connection, which has its pluses and minuses.

Edgar is an Old English name historically associated with the tenth century English king known as Edgar the Peaceful. There was also a King Edgar of Scotland.

Edie is part of the Evie-Ellie et al family of cute and friendly short forms that sometimes stand on its own. Briefly popular in the 1960s, it could well be due for rediscovery. It's already a fashionable choice in the UK, where it has ranked just outside the Top 100 for several years.

Edith was a hugely popular name a hundred years ago that's being revived among stylish parents in Stockholm and London. It's currently beginning to gain traction in the US among those with a taste for old-fashioned names with a soft but strong image.

The sophisticated Edmund and its nearly-identical French twin Edmond are coming out of mothballs now that Edward, inspired by Twilight, is once again a hot name.

Unlike perennials William, John and James, Edward is a classic that moves in and out of fashion. This royal Anglo-Saxon standard has benefited in recent years from the popularity of the hot hero of the vampire sensation Twilight — Edward Cullen — who has given his name a new infusion of cool.

This old Scottish form of Helen has had quite a history, going from appearing as one of the shining heroines of the Arthurian legends, the princess who fell in love with Sir Lancelot and became the mother of Sir Galahad, referred to as 'Elaine the fair' and 'Elaine the lovable', to being the name of the most famous of New York's celebrity restaurants, to being the archetypal New York neurotic on Seinfeld.

Elizabeth is one of the most popular girls' names of all time, the female equivalent of James or William. Yet Elizabeth has so much going for it—rich history, broad appeal, and timeless style—that no matter how many little girls are named Lizzie, Eliza, and Beth, you can still make Elizabeth your own.

Ella is a sweet, simple name that owes much of its current popularity to the popularity of other names, from Emma to Bella to Emily to Ellie.

An medieval English form of Helen, the sensitive but clear-eyed Ellen has swung in and out of style for centuries, often alternating with the parent name. Ellen was the more common in medieval England, until after the Renaissance, when Helen overtook her. In Edith Wharton's The Age of Innocence, set at the end of the nineteenth century, one character wonders why another has not changed her "ugly" given name to something prettier, like Elaine—a statement few would make today.