Deci, centi, milli, micro nano, and pico come from Latin. Femto and atto
come from Danish. Deka, hecto, kilo, mega, giga, tera, and exa come from
Greek. I have not been able to find the etymology of yotta, zetta, zepto,
and yocto
I think the latter came from the Marx Brothers, or maybe Seinfeld.
cm
