What is the greek word for investor?

There isn't one single perfect Greek word for "investor." The best translation depends on the context. Here are a few options, with nuances:

* Επενδυτής (Ependytís): This is the most common and generally accepted modern Greek word for "investor." It's a fairly straightforward translation.

* Χρηματιστής (Chrimatistis): This word is broader, meaning "financier" or "money-lender." It could be used in some contexts, but it's not as precise as *ependytís*.

The best choice will depend on the specific situation. For most purposes, Επενδυτής (Ependytís) is the safest and most accurate option.