This name of a Roman emperor and of a sedating plant is still used quietly, given to about a dozen baby boys in the US last year. It has a strong, rhythmic sound and could make a modern-feeling honor name for grandma Valerie.

Lionel is one leonine name that hasn't taken off as cousins Leo and Leonardo have, though it did reenter the Top 1000 in 2010 after several years away; it was at its highest point in the 1920s and 1930s.

Kathleen is the early Irish import version that came between Katherine and Kaitlin, and which hasn't been used in so long it's almost beginning to sound fresh again. It was a surprise pick by one of the hip Dixie Chicks, Martie Maguire. Kathleen was a Top 10 name from 1948 to 1951, and it is the subject of several old sentimental songs, such as "I'll Take You Home Again, Kathleen."

To Americans, a quintessential British name, introduced to the U.S. public by suave journalist/PBS Masterpiece Theater host Alastair Cook. Sometimes used in the U.S. by parents with Scottish heritage.

Patricia still sounds patrician, though its scores of nicknames definitely don't. Wildly popular from the forties (alternately Number 3 and 4 throughout the decade) to the sixties, Patricia has been fading ever since. But a comeback in its full form is definitely conceivable—just look at Penelope.

This name is a classic example of an underused golden oldie that ticks so many boxes - unusual yet traditional, heaps of cute nicknames, a statement name that exudes retro cool. Aloysius is the Latin form of many more common names like Louis, Luis, Luigi and the uncommon but symphonically familiar Ludwig.

Desmond is a sophisticated and debonair name, with noble ties to 1984 Nobel Peace Prize-winning Bishop Desmond Tutu, and with some great nicknames: Des/Dez, Desi/Dezi.

This Roman Emperor's name has long been considered too grand for an American boy. But in this era of children named Augustine and Atticus, it just may be prime for an unlikely comeback.

An underused classic that has proved surprisingly unisex over the last few decades, being given to roughly the same number of baby girls and boys in the US from the 1970s to the 2000s. For a girl, Marion has a sturdy old-fashioned charm.

Azalea is one of the fresher flower names, along with Zinnia and Lilac, that are new to the name bouquet — in fact, it entered the Social Security list for the first time in 2012. So if Lily and Rose are too tame for you, consider this brilliant pink springtime blossom with a touch of the unusual that has been growing in popularity.

A name that Yanks might see as overly British, but combined with the right surname, it does have a measure of Sherlock Holmesian dash via Nigel Bruce, who played the original Dr. Watson to Basil Rathbone's Sherlock Holmes.

Viola has plenty of positive elements going for it: the rhythm of the musical instrument, the association with the flower, the trending 'Vi' beginning and its leading role in Shakespeare's Twelfth Night. With a touch of international flair, it also avoids the violent/Violet some parents have.

Marguerite is a classic French name with a remnant of old-fashioned Gallic charm; and is also a variety of daisy. Chic again in Paris, it's definitely ripe for revival here.

Augusta is a dignified name reminiscent of wealthy great-aunts and stately homes, but with the fashion for both August and Gus for boys, and the renewed interest in clunky classics like Gwendolyn and Winifred for girls, Augusta might just appeal to contemporary parents.

Roland is a chivalrous old name made famous by the supposedly eight-foot-tall romantic hero and nephew of Charlemagne, celebrated in medieval poetry and song. It is more widely heard in the US now in its Spanish form, Rolando. You might want to consider rollicking short form Rollo, either on its own or as an abbreviation of Roland. Orlando is the graceful Italian form.

Combining the mild and the innocent, this sweet and feminine name is worthy of a comeback, in the mode of Madeline and Cecilia. Its original, also attractive form is Melisende, which came from Germany to France and was borne by a daughter of Charlemagne.

Angela was a Top 10 name from 1965 to 1979, the fifth most popular name for three years, and staying in the double digits until the turn of the 21st century. Today, though, Angelina or Angelica would be more fashionable options.

An offbeat possible replacement for the overused Melissa and Marisa, Nerissa was used by Shakespeare for Portia's witty confidante in The Merchant of Venice. Queen Elizabeth has a cousin named Nerissa.

Ferelith is an unusual yet deeply-rooted Scottish girl's name, also found in ancient Ireland and drawn from the Gaelic Forbhlaith or Forbflaith. While it went through a period of dormancy after the Middle Ages, there are some modern women named Ferelith, including actress Ferelith Young and Princess of Denmark Anne Ferelith Fenella Bowes-Lyon.

Names ending in bert have long been in limbo, but with the return of Albert, maybe there's hope for Herbert. who could share the Bertie nickname. Herbert is a name that's been used by English speakers since medieval times, and was in the Top 25 in the US in the late 1920s, around the time of the presidency of Herbert Hoover, but there's been no sight of Herbert in the 21st century. Some Herberts, including novelists H. G. Wells and H. E. Bates, have preferred to go by their initials.