Sibling for Kaia and Caden

Tatum is one of the rare examples of a name that was exclusively female, as in Tatum O'Neal, but now is used for boys too, entering the male Top 1000 in 2010. Khloe Kardashian made headlines when she revealed her son is named Tatum Robert, breaking from the family theme of using unique word names for their children.

This early Scottish title -- known to us via Shakespeare's Macbeth -- has recently surfaced as a baby name possibility, familiar sounding through its similarity to names like Zane and Wayne.

See the popularity graph below for the name Theo? It's been heading straight uphill since 2010, when it hopped back onto the Top 1000 after a 60+ year absence.

Troy shot to popularity as a first name in tandem with that of 1960s heartthrob Troy (born Merle) Donahue; its image has now, thanks in part to the Brad Pitt-starring epic, Troy, receded back to conjuring up the ancient site of the Trojan wars.

Wren, a lilting songbird name, could be the next Robin. Wren entered the Top 1000 for the first time in 2012 and is among the new wave of popular English names for girls.

Zoe is one of those surprising names that has been on the Top 1000 nearly every year since 1880, but it's only since the turn of this century that it's ranked in the Top 100.

Zuri migrated, at least to American sensibilities, to the feminine side when an Ohio zoo used it for a female giraffe. For either gender, Zuri is an attractive name with the usual Z-initial zest.