Fairly popular a hundred years ago but out of the US charts since 1978, the quirky yet edgy Roscoe feels very much in step with the trending o-ending boy names popular now, such as Milo, Hugo, and Otto. A Top 1000 choice in the UK (albeit near the latter end), it could make a cool alternative to Ross, Russell, Robert, and Ronan.

A strong single-syllable surname with a joyful meaning, Tate is finding a place on more and more birth certificates.

Eric is derived from the Old Norse name Eiríkr, from the components ei, meaning "ever," and ríkr, "rule." It was adopted by English speakers in the mid-nineteenth century, who were already familiar with the exploits of the tenth century Viking navigator and discoverer of Greenland, Eric the Red. Erik is an alternate spelling and the preferred form of the name across much of Europe.

Odin is the name of the supreme Norse god of art, culture, wisdom, and law — who was handsome, charming, and eloquent into the bargain. The name projects a good measure of strength and power and has excellent assimilation potential.

A popular name in Denmark, in this country Bo has some cowboy swagger and a lot of substance in its minimal two letters. In Mandarin Chinese, Bo means "wave".

Dustin's popularity in recent years has probably had more due to its similarity to Justin than to idolization of Dustin Hoffman -- himself named after silent screen cowboy star Dustin Farnum -- who certainly was the one to put it on the name map. In recent years, golfer Dustin Johnson has brought fresh renown to the name. Dustin is a character in Netflix hit Stranger Things. After decades in the spotlight, Dustin feels like a classic rather than an upstart. It peaked in the Top 50s in the 1980s.

Closer to the original Norse name Ívarr, it is part of a small group of names with similar roots: Ivor, Iver, Ivo, Ives, and Evander, which all make rugged yet gentle feeling choices. Used throughout Scandinavia, Ivar is in the Swedish Top 100 and is also on the rise in the UK, outranking the English variation, Ivor.

A strong, if slightly dated sounding choice, Ronald made the US Top 10 in the late 1930s through into the mid-1940s, before it became heavily associated with President Reagan, as well as with the McDonald franchise mascot. More recently, it has appeared in the Harry Potter series, borne by Ronald "Ron" Weasley, while others may immediately think of its rhyme, Donald. All of these factors may work against Ronald making a big resurgence, but popular nickname Ronnie might make others reconsider.

Spirited and bubbly, but handsome and preppy too, Darby is a surname style choice that fits in well with the likes of Alby and Lennox.

Digby is a place-name in Lincolnshire turned surname turned quirky first name that is starting to get some attention. In fact, it ranked in the UK Top 1000 in a recent year where it fits in with the likes of Barnaby, Rupert, and Wilbur.

Thor, the powerful name of the Norse god of thunder, strength and rain, would make a bold statement. Long a comic book staple, Thor has now invaded the big screen, and could land on birth certificates as well.

Some sources give Thorin as a variation of the thunder god name Thor, equivalent to Thoren, while others says it comes from the verb að þora, meaning "to dare." This is a dwarf's name that first appeared in the thirteenth century mythology compilation Prose Edda, which, along with the Poetic Edda, represents nearly all of pagan Scandinavian mythology. Tolkien later used the name for character Thorin II Oakenshield of The Hobbit.

A strong, powerful choice, ancestor of the modern Superboy Names. Knut is the name of the patron saint of Denmark; Knute Rockne was a legendary Notre Dame football coach. Knute is the middle name of Jessica Simpson's son Ace, in honor of his paternal great-grandfather. Note that pronunciation is two syllables, with the K sounded.

Especially for parents of Scandinavian descent, Sven is an accessible and attractive name with an appealing mix of strength and swagger. It comes from the ancient Swedish tribe, the Sviars, who gave their name to Svealand, which later morphed into Sweden.

Far more friendly and open than similar one-syllable names like Kent, Kurt, and Karl, it's been associated for more than half a century with actor Kirk Douglas, whose birth name was Issur Danielovitch Demsky.

An fearsome old Norse name with a long history in Scandinavia. It's gotten a boost in the States from popularity of the History Channel drama "Vikings," in which the protagonist is named Ragnar. Ragnar Lodbrok (meaning "shaggy pants") was a legendary warrior whose story was told in the Viking sagas. Ragnar also recalls name of the Norse Judgment Day, Ragnarök.

Attractive British place-name with a sense of humor. Fun fact: John Wayne played five characters with the first or second name of Kirby.

In Norse mythology, the son of the giant who ruled the wind and air; in modern America, recalls a 1970s girl's nickname name, à la Carrie and Keri.

Popular in the Scandinavian countries, but in this country it would surely bring to mind the very feminine Halle Berry.

Olaf, though sainted and regal in Norway, is slightly oafish here. It is one of those names that has become completely familiar in the U.S. without ever becoming assimilated. Now that he's a comical character in Disney's Frozen, he might get some more attention.