Everest has an attractive enough sound and lofty enough meaning to come into style, à la Sierra. George Lucas bestowed this aspirational name on his baby daughter in 2013 and it has been climbing up the charts ever since. Currently in the US Top 1000 for boys, it was also given to around 100 girls in a recent year.

Most things Jul-related – from the month of July to popular modern names Julia and Julian – originate with Roman emperor Julius Caesar, and the month name July is no exception. Fifteen girls and seven boys were named July in 2013, putting this month name into the class of gender neutral names.

Most things Jul-related – from the month of July to popular modern names Julia and Julian – originate with Roman emperor Julius Caesar, and the month name July is no exception. Fifteen girls and seven boys were named July in 2013, putting this month name into the class of gender neutral names.

Leaf is a hippieish choice that, for girls, still retains an evergreen quality.

The nature boy version of the Scandinavian Leif, which actually means "heir". In the creative-naming Phoenix family, Leaf is the former name of the actor we know as Joaquin.

Maple is one of those sweet-spot word names that sounds so almost name-like that it doesn't feel outlandish or strange, despite its relative newness as a given name. Just as Juniper is adjacent to June or Pippa, Clover like Chloe or Clara and Ember like Emma or Ebba, Maple is enough like Mabel, Maisie and Mae that it blends in well and has a touch of borrowed vintage charm.

Mars is a name with interesting potential, ticking the boxes as a mythological name, a space name, and a single syllable choice ending in -s. For parents wanting something unexpected, Mars could work as an alternative to popular Brooks, Max, Atlas, or Miles - and given to around 124 boys - and 27 girls - in a recent year, it is unusual but recognisable.

Men may be from Mars as the saying goes, and the name may derive from the Latin maris meaning male, but soul singer Erykah Badu and Workaholics star Blake Anderson have given it potential as a unisex name after they both used it for their daughters.

Oak, a symbol of solidity, strength, and longevity, is joining Cedar and Pine as a viable name, one that would work especially well in the middle.

Ten times as many boys are named Oak as girls: about 50 boys last year to five girls. Of course, nature names don't have any traditional gender identification the way names like John and Mary do, so Oak works well for all babies. Oakley is the most popular Oak name for babies of all genders.

The Greek mythological hunter who was turned into a constellation is much more often used for boys.

Sleek, unisex surname rarely heard for girls -- which could be seen as an asset.

A daring word name with a touch of mystique, Shadow is an edgy choice for a baby that some may say is best reserved for pets. Nevertheless, it has been appearing in the US stats for girls since 1974 and for boys since 1987.

A word name with a touch of mystery surrounding it, Shadow is a bold, edgy choice for a baby which some may find a bit ominous. While it is predominatly used for cats, dogs, and other furry friends, it can be considered a wild word name that parents are actually using, having debuted in the US stats for girls in 1974 and for boys in 1987.

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.

Sorrel is a gentle, amber-hued herbal and autumnal name that's used most often to describe the color of a horse. Sorrell is a variant spelling. Both make excellent names for autumn babies and can be used for either gender.