May one say names of ancient gods, such as Hercules, Zeus, etc.? Does it make a difference if they are no longer worshiped?
Regarding saying the names of Greek gods the Darcei Tshuva (Y:D 147-4) brings the Bais Yitzchok that says that we should not say the name of Greek gods. The reason being that even though nowadays people don’t worship these gods, nevertheless there might still be some people somewhere in the world that do still worship it. Therefore it should not be said.