Historically, Sire was a formal term for addressing male royalty, particularly a king. Sire can also mean "father" or "senior" as both a noun and a verb. Now, like Prince, Sir, Messiah, and Saint, this title is now a name on the rise.

After half a century, this otherwise feasible name has at last started to lose its link to the friendly ghost; it certainly didn't scare model Claudia Schiffer, who chose it for her son, as did Atomic Kitten Jenny Frost. Iconoclastic namer Jason Lee switched genders and called his daughter Casper. Also related to the revived Jasper, Caspar seems headed towards the path to a similar resurgence.

Not only did rocker John Mellencamp name his son Speck, but he appended the middle name Wildhorse to it.

Blue suddenly came into the spotlight, as the unusual color name chosen by Beyonce and Jay-Z for their baby girl Blue Ivy. Blue is also a starbaby middle name du jour, used for both sexes in different spellings and forms, from John Travolta and Kelly Preston's Ella Bleu to Alicia Silverstone's Bear Blu. Dave 'The Edge' Evans named his daughter Blue Angel back in 1989.

A new unisex word name with a lot of charm, especially appropriate for the child of writers. Soleil Moon Frye named her second baby boy Story and Jenna Elfman called her son Story Elias.

Bamboo is a plant name that you might want to save for the zoo's name-the-panda contest. It was used for a starbaby in 2000, though, the rapper Big Boi.

When people talk about unique baby names, Apple is often one of the first examples they mention. Apple made international headlines when Gwyneth Paltrow chose this wholesome fruit name for her daughter. Many have called it ridiculous, but we have to admit, we find it appealing enough to list as one of our top cute baby names. Rocker Bob Geldof named one of his daughters Peaches; Banana Yoshimoto is a hipster writer. Another choice in this genre is the luscious Plum, though for different reasons, neither Prune nor Cherry will fly.

Tenzan is a variation of Tenzin, a name with special significance for Buddhists, being the first name of the Dalai Lama.

One of the coolest of names, thanks to legendary jazz pianist Thelonious Sphere Monk, who inherited this Latin-sounding German name from his father. It has been used very sparingly since the 1960's, with just a sprinkling of baby boys receiving the name each year, though it's one of the unique baby names we predict will get much less unique as more parents embrace its quirky charms.

A would-be up-and-comer if it wasn't for the spiked seltzer brand.

A name with plenty of grandeur, but a playful nickname, Wolfgang blends sophistication, wildness, and gothic imagery. While it may feel surprising in this century, it does have an allure for those who want a name associated with dark academia, Halloween, history, intellect, wolves, and art.

Though rapper Chingy's (real name: Howard) Alzea is a boy, this name seems more appropriate for girls.

In a baby name landscape where word names and names that start with Z are infinitely cool, there are few options for parents who want to combine trends. Zeppelin is one of the best names at the intersection of these two styles, and it's rising alongside the likes of Zen, Zephyr, and Zenith.

Rappers Cardi B and Offset gave the truly unique word name Kulture to their daughter in 2018. Its message is more inclusive and artistic than such elevated celebrity baby names as Saint, Reign, and Sir. Kulture may refer to a creative culture or a social culture. The baby's middle name is Kiari, which is dad Offset's birth name.

Kulture is one of the most unique celebrity baby names of recent years.

Fitting in with Scottie, Stevie, Frankie, and Birdie, Ziggy is a nickname-y choice that feels energetic, cutesy, and cool. Borrowing star quality from Ziggy Stardust and Ziggy Marley, Ziggy is predominantly used on boys, however, since the death of David Bowie in 2016, it has been quietly gathering attention as a girls name, with 43 babies given the name in a recent year.