n.
  - a traditional story concerning the early history of a people or explaining a natural or social phenomenon, and typically involving supernatural beings or events.
 - a widely held but false belief. 
▸a fictitious person or thing.
 ▸an exaggerated or idealized conception of a person or thing.
 
 
  Derivative
  
    - mythic adj.
  - mythical adj.
  - mythically adv.
 
   
  Etymology
  C19 (earlier (C17) as mythic): from mod. L. mythus, via late L. from Gk muthos.