Daemon: "In Greek myth, an intermediate spirit between men and Gods. Daemons such as the one who guided Socrates act as councilors and guardians to human beings."

Another defintion:
Demon and daemon were once used interchangeably. The former came to English from medieval Latin, while the latter was from classical Latin. The earliest use appears to have been in the phrase daemon of Socrates, which was his "attendant, ministering, or indwelling spirit; genius". That was in the late 14th century. It was a short time later that the term demon came to refer to "an evil spirit" by influence of its usage in various versions of the Bible. The Greek form was used to translate Hebrew words for "lords, idols" and "hairy ones (satyrs)". Wyclif translated it from Greek to English fiend or devil. This is how the evil connotation arose. By the late 16th century, the general supernatural meaning was being distinguished with the spelling daemon, while the evil meaning remained demon.