1a The Word Is What

Psychology (ancient Greek: psyche = soul and logos = word) is the study of mind, thought, and behaviour.

http://www.wordiq.com/definition/Psychology

Epistemology (from the Greek words episteme=science and logos=word/speech) is the branch of philosophy that deals with the nature, origin and scope of knowledge. http://www.wordiq.com/definition/Epistemology

Open--PurposeOfReligion.htm