[oezi]

I meant trademarks.

Of course a trademark of a common word might arise naturally from being in the market and becoming widely recognized (e.g. Apple), but you can't file a trademark for it until you have become widely recognized.

This is why Nova is a very popular term for products.

[dann0]

That's not right. The more a term is in the market, the more difficult it is to get a trademark approved.

The difficulty comes from the obligation to protect a trademark - if you have trademark rights to a term and don't take reasonable steps to protect it, you're at risk of losing your rights.