What is the greek word for fruitful?

There isn't one single perfect Greek word for "fruitful" that covers all its nuances (productive, successful, abundant). The best choice depends on the context. Here are a few options:

* καρποφόρος (karpoforos): This literally means "fruit-bearing" and is often used for plants, but can be used metaphorically for something that yields good results.

* ἀποτελεσματικός (apotelesmatikos): This means "effective" or "successful," and could be used if "fruitful" refers to achieving a desired outcome.

* πλούσιος (plousios): This means "rich" or "abundant," and would be suitable if "fruitful" refers to a plentiful harvest or great success.

* εὐδαίμων (eudaimon): This translates to "fortunate" or "prosperous," and could be appropriate if "fruitful" implies a generally successful and happy life.

To choose the best word, you'd need to provide the context in which you want to use it.