Milo is most commonly considered to be Germanic name derived from the Latin word miles, meaning "soldier." However, there is evidence to suggest it also may have independently spawned from the Slavic root milu, meaning "merciful." Milo predates brother name Miles, a variation that evolved when the name immigrated to the British Isles in the Middle Ages. Mylo is an alternate spelling.

This Dutch form of Elijah — or other Eli- names — holds plenty of appeal, combining the gentle El- of Elliot or Elias with the ending of rising choices such as Cassian and Caspian. Popular in Puerto Rico, Chile, and Mexico, it has also been rising up the US charts since the 2000s and now sits within the Top 300.

Quirky cool Arlo is now well and truly back. Last year it broke into the US Top 200 boy names and consistently ranks among the most popular boy names on Nameberry. Along with its Irish and English roots, Arlo may be a shortened form of the Italian Carlo or the Spanish Carlos, both forms of Charles,and in Basque-speaking regions it is the word for area.

One of those simple, straightforward English surnames -- and with a presidential pedigree -- that's easy to translate into a first. Chosen by both Kevin Costner and Jessica Alba for their sons, it has been climbing the US charts since 2009.

Rhett has been more tied to Gone with the Wind than even Scarlett, but now we're hearing rumblings of its finding new and independent favor among parents, perhaps emboldened by the growing popularity of Scarlett.

Haunting biblical and Civil War place-name; now unisex—especially after the mega-high-profile Brangelina couple picked it for their daughter. It debuted in the Top 1000 for boys in 2015.

Elio is a sunny and spirited Italian and Spanish name that makes a great crossover prospect, which could catch on as Enzo has. Derived from the Roman Aelius and the Greek Helios, it has an appealing summery meaning and a similar sound to stylish choices, like Elliott, Elias, Leo, and Eli.

Fairy-tale memories of Sleeping Beauty inspire some parents—such as Rachel Bilson and Hayden Christensen—to call their daughters Briar Rose. But Briar plus a different middle name might work even better. It's one of the newly popular nature-word names, charting in the US for the first time in 2015 for both genders.

Boone is one of the advancing herd of lean and lanky cowboy names with a laid-back, backwoods, Western feel—and surprising French roots. It's inevitably linked with legendary frontiersman Daniel, and also with the positive connotations of the word boon. It debuted in the US Top 1000 in 2015.

Truett is one of the trendier names in the Tru- family (True, Truman etc), which was used for 92 boys in the US last year. Truett is deeply associated with the Baptist church in the Southern USA due to former leader George Truett. Truitt is another spelling, less commonly used. Some sources say that Truett, as a surname or a first name, is a habitational name -- a name given to people who lived in a certain place -- in this case, Trewhitt in England's Northumbria. The place name is drawn from the Old Norse tyri meaning "dry resinous wood" and the Old English whit, which means river bend. It's an appealing name, though say it too quickly and it can sound disturbingly like truant.

We've seen Ray regain his cool, but could this country/cowboy name epitomized by Roy Rogers (born Leonard Slye), Acuff, and Clark, do the same?

Otis has real appeal for parents attracted to its catchy O initial and combination of strength and spunk. The appealing hero of the British TV show Sex Education has done much to propel Otis into the forefront of cool names.

Old Testament name all but unknown outside the Latino community, it is nonetheless in the US Top 1000, where it has been since 1990.

Huxley is definitely rising as a surname name, with its X that makes almost any name cooler. It debuted in the US Top 1000 in 2015. The modern nicknames Hux and Huck certainly don't hurt.

Humphrey is an old name that might have faded completely were it not for that Bogie flair. A royal name in Britain, where it's used somewhat more frequently, Humphrey might just have some life beyond Bogart here, especially with the recent interest in the names of Golden Age Hollywood stars. His first name was the maiden name of his mother, Maud Humphrey, a well-known illustrator who used baby H. as a model.

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.

Eustace was originally popularized by St. Eustace, who was born a Norman nobleman and is said to have been converted to Christianity by seeing a crucifix between the antlers of the deer he was hunting. It was introduced to England by the Normans, and can be found in medieval legend. In literature the name appears in the person of Eustace Clarence Scrubb in C. S. Lewis's The Chronicles of Narnia.
The image of Eustace today is as sedate and stuffy as the monocled Eustace Tilly character on The New Yorker magazine covers. Its diminutive Stacy became a unisex hit.

In the World War II era, Roger had nothing but the most positive associations, actually used by military personnel to mean 'Received and understood'--or A-OK, and though it is now on extended furlough, it does have a long and distinguished history. Introduced to England after the Norman Conquest of 1066, Roger soon became very popular there, with nicknames Hodge and Dodge, and had a long run later in the U.S, remaining in the Top 100 for 55 years.

Alvin has a sturdy, no-frills sound that belies its somewhat whimsical meaning. Interesting potential namesakes include British rocker Alvin Stardust, and US footballer Alvin Williams, and African-American dance legend (and activist) Alvin Ailey.

What with the resurgence of W names like Weston and Walter, the prominence of high profile actress Emma and golfer Bubba, and even the attention paid to Watson, the IBM computer on "Jeopardy" (named for IBM's founder, Thomas Watson) this name could be in line for a revival of its own.