Sleek and smart, with a hint of mystique about it, Silas is a recent addition to the US Top 100. Both mythological and Biblical in origin, Silas joins the ranks of Isaiah, Atlas, Elias, and Sebastian: polished and contemporary feeling names with plenty of history.

Sebastian is an ancient martyr's name turned literary, and Little Mermaid hero—think Sebastian the Crab—that's more popular than ever, as a classic-yet-unconventional compatriot for fellow British favorites T Theodore and Oliver.

Samuel has been so popular for so long that it's hard to believe it's still climbing, at its highest point since the 1890s.

Sawyer is a surname with a more relaxed and friendly feel than many others, and is one of the hottest occupational names right now, with the Nameberry seal of approval. Sawyer is becoming one of the top unisex names. Both Sara Gilbert and Diane Farr used Sawyer for their daughters, while it was given a boost as a boys' name by the character Sawyer on Lost, an alias for the character really named James Ford.

Chosen for their daughter by Bruce and Demi (inspired by the To Kill a Mockingbirdcharacter), and for her son by Tai Babilonia, an interesting choice for either sex, with overtones of a "good scout" and the upstanding qualities of a Boy/Girl Scout.

Stephen, also spelled Steven, is a strong and likable classic, with the he's-a-great-guy short form Steve. Though not as well-used or fashionable as it was in its heyday -- it was a Top 25 name from 1946 to 1957 -- it's still a widely used name. It remains an even more popular in Ireland.

One of the many variations of Silvanus, the name of the Roman forest god, and a little-used member of the freshly stylish Sylv- family of names. Silvan is the sleek German and Dutch form. Given to less than 100 boys each year in the US, it's nevertheless in the Nameberry Top 500, perhaps owing to its gentle yet sleek sounds, the -an ending, and the nature-related meaning.

A cool, windswept, surfer babe-magnet in 1965, a nice dad -- or even granddad -- today.

A modern, multifaceted name, Sage is short, sweet, and strong. A unisex possibility, it is also a virtuous word name associated with wisdom, and a nature name linked to a fragrant herb.

Although Stanley Kowalski in A Streetcar Named Desire personified brute force, most Stanleys have been portrayed as meek milquetoasts. It has a totally "old-man" or "grandpa" vibe that may appeal to those who like Walter and Rupert or Daphne and Mabel.

This name of three early popes has been associated in recent years with a cocky cartoon cat ("Thufferin' thuccatash!") and the Italian Stallion hero of the Rocky and Rambo movies (who was born Michael) — and yet we think it just might be ready to move further back into the mainstream.

Steven, the phonetic and now predominant spelling of the classier Stephen, has finally dropped out of the Top 100 after seventy years. Steve has become one of the ultimate regular-guy names, right up there with Dave and Joe. and there have been innumerable pop-culture role models among its bearers--from Steven Spielberg to Steven Soderbergh to Steve Jobs.

Sky is an ambigender nature name that was first legitimized as the character of Sky Masterson in the 1950 musical Guys and Dolls, played in the film version by Marlon Brando. It's a name we appreciate for its clear, wide-open feel, less hippyish than others like Rainbow and Starlight, and makes an appealing middle name possibility.

Seren, meaning "star", is one of the top girls' names in Wales, but as a boys' name it has a different derivation. It's a rare Polish form of the Latin Serenus, mostly used to refer to the Saint and meaning "serene". It could make for a handsome and almost unknown alternative to rising star Soren.

One of the old-school nicknames -- think Ray, Vince, Frank -- that's on the brink of coming back into style. Name him Stanislav or Constantine and he'll have a groovier long form to fall back on.

One of the more subtle occupational surnames, Sayer is a pleasant, open, last-name-first name, particularly apt for a family of woodworkers -- or writers.

Septimus is one of the more dashing of the birth-order Latin number names that were revived by the Victorians. So even if you don't anticipate son number 7, you might be bold enough to consider this relic, certainly preferable to sixth-son name Sextus.

This number name first came to public attention when Erykah Badu and Andre 3000 chose if for their son, Seven Sirius Benjamin, born in 1997. Over a decade later, David and Victoria Beckham used it as their daughter's middle name, and now in these days of unisex word names, it's rising for both sexes. It's certainly one of the most name-like numbers: after all, it's only a letter away from Steven.

An especially adventurous word name that conjures up mountain expeditions. As names like Everest and Zenith continue to climb, so too should Summit.

Though some may find such names rather harsh and severe, increasing numbers of parents are gravitating toward this kind of flinty, steely, stony single-syllable name.