Not gender neutral... Yet

Ro is a casual short form that doesn't usually appear on the birth certificate on its own. But it makes a friendly nickname for any girls' name starting with Ro-.

In the US, the multicultural surname Roe is primarily associated with the landmark Supreme Court case Roe vs. Wade, which granted the federal right to abortion. It's never been popular as a given name for either sex but is seen as a nickname for names such as Monroe and Rowan.

The -el ending feels inevitably feminine; also a form of French poetry.

The masculine version of Rosen, pronounced ROH-zen, is a German and Bulgarian name, commonly seen as an element in Ashkenazi Jewish surnames. But Rosen, pronounced ROZ-en, is a modern Cornish word name used predominantly for girls.

Spelling variations abound when a name is trendy, which Rosalind is not these days. We say leave Roslyn back in the middle of the 20th century and reclaim the original Rosalind.

Likely derived from the Greek name Roxanne, Rox was a short form popular in America in the mid-19th Century. Like Max and Lux, it seems sleek and contemporary and particularly suited to modern life.

Rumi is a Japanese girls' name that sounds like a couple of other choices more familiar in the West -- Rumer and Remi -- that is achieving notice because of its choice by two celebrities, including Beyonce and Jay-Z.

One of many R- boys’ names that started as a nickname for a redhead, Russell had a measure of popularity from the early twentieth century through the 1950s. But it's now lost much of its color -- except for a few dynamic bearers, actors Russell Crowe and Russell Brand and sports stars Russell Westbrook and Russell Wilson.

Spice names are increasingly appealing to the senses of prospective parents; this one, belonging to a precious spice derived from the crocus has a vaguely orange-scented-incense sixties feel.

The name is derived from the term commonly used in the Book of Psalms, which has a many Hebrew scholars in confusion over its meaning. Given its context in the Bible, Selah is likely to mean "to praise" or "pause and reflect upon what has just been said." Lauryn Hill used this name for her daughter. It is the last word in Anita Diamant's novel The Red Tent.

Senna is a flowering bush common in the tropics, with bright yellow flowers. In herbal medicine, Senna has gained some notice as the active ingredient in so-called "dieter's teas," which works mainly as a laxative. While that is a less-than-savory association, Senna has a pretty sound and is a fresh entry in the flourishing botanical names genus.