BABY NAMES
Peridot
French
 Up in popularity
 Down in popularity
 Best bet
 Unisex
This little-used gem name combines the pixie-ish Peri with the adorable Dot (though the correct pronunciation is actually "peri-DOE"), making it a fine addition to the Ruby and Pearl family.

Variations
Perido, Peridoh, Peridoe
Popularity rankings from the Social Security Administration
Peridot
About name popularity rankings
You may find some surprises -- for example, who knew Jennifer was a boy's name? Because this feature uses actual Social Security data, it includes the human error that attends a large survey, but it still reliably reflects the patterns of naming fashion.