I'll go look that up, but I think this is some kind of ploy to get everybody's First Name. Here's the specs on it according to
27,000 Baby Names, Meanings and Origins at Baby Names World
Nicolas
Origin: Greek
Meaning: Victory of the People
Nico (My Nick-Name)
Origin: Greek
Meaning: Victory of the People
I honestly don't think this site is very accurate. It claims Nico is normally used in Dutch and English speaking countries, but I distinctly remember my Father telling me "Nico" was a very common name in Spain and Italy.