Source : Webster's Revised Unabridged Dictionary (1913)

Stagy \Sta"gy\, a. [Written also {stagey}.]
   Having an air or manner characteristic of the stage;
   theatrical; artificial; as, a stagy tone or bearing; --
   chiefly used depreciatively.

Source : WordNet®

stagy
     adj : having characteristics of the stage especially an artificial
           and mannered quality; "stagy heroics" [syn: {stagey}]
     [also: {stagiest}, {stagier}]