Sibling for Nolie and Nox

If you're looking for an Irish last name that moves beyond Casey and Cassidy, this one is pleasant sounding and worth considering. Kavanaugh, which can also be spelled Cavanagh, Cavenagh, Kavanagh, and Cavanaugh, is one of the few traditional Irish surnames not to start with Mc or O'. Kavanagh relates to the name first Kevin or Caomhan. Early kings of Leinster bore the name Kavanaugh.

Marius, frequently heard in Germany and France, is a slightly fusty yet accessible name that has (Les Mis) to Anne Rice. With the rise in interest in such Latin names as Maximus and Atticus, Marius might start attracting more attention. Mario, the Italian, Spanish and Portuguese version of Marius, is much more widely used.

Nash is an English surname whose sound puts it right in step with currently trendy names like Cash, Dash and Ash. It first came to prominence via TV character Nash Bridges, portrayed by Don Johnson in the late nineties, and also via mathematician John Nash, played by Russell Crowe in the acclaimed film A Beautiful Mind.

The skyrocketing success of singer Norah Jones brought this spelling of the name onto the pop charts in 2003. As well as being a spelling variant of Nora in English, it's also an alternative transcription of the Arabic name Nura, from Nur/Noor "light".

An unnecessarily complex retooling of Paisley, one of the most popular girl names that start with P.

Penelope is an unlikely 21st century baby name success story. Off the Top 1000 for 25 years, Penelope jumped back on in 2001 and has been heading uphill ever since, propelled by the trend for mythological names, Spanish actress Penelope Cruz, and some high-profile celebrity babies.

Penrose – an ancient place-name and surname derived from several villages in Cornwall, Wales, and the Welsh border country of England – would make for an even more unexpected alternative to quirky nature name Primrose. Intuitive nicknames Penny or Rosie make it feel more wearable.

Five girls were given the name Perrine last year. More modern-sounding are Perrin, Perry, or even Petra.

Posie and its near-identical twins Posy and Posey are delicate old-fashioned flower names of the type that are stylish today: Think Poppy, Marigold, Clover.

A quaint and quirky flower name, until recently considered a bit too prim for most American classrooms but brought back to life in recent years by the attractive character of Primrose "Prim" Everdeen in the Hunger Games series. In the Top 300 girl names in England and Wales and on Nameberry, Primrose remains rare in the US, but is made more accessible by a raft of sweet nickname options, including Rosie and Posy.

Despite its somewhat menacing meaning, this name has been widely used in recent years, probably due to the appeal of its trendy on ending.

His nickname would inevitably be Bull.

Thayer is an affable, less-common alternative to Taylor, with a much more indirect connection to its occupational source. Actor Thayer David (born David Thayer: Thayer was his father's first name) was known for his roles in Rocky and Dark Shadows.

Despite Thornton Wilder, playwright of the perennial Our Town, only a handful of baby boys receive this name each year..

The name of an important ancient Roman emperor, Tiberius might sound a bit heavy for a modern boy to carry, but with the rise of Atticus, Tiberius and brothers begin to feel more baby-friendly, much in the same way as Old Testament names like Elijah and Isaiah have been rejuvenated.

William is one of the most enduring of classic names for boys. It's also among the most popular boys' names, as American parents see it as being ideally conservative yet contemporary, and hands-down the most popular baby name beginning with W of all time.