Initiation into mysteries; instruction in arcane knowledge preparatory to such initiation. Often derogatory with suggestion of obscurantism, charlatanism, etc.
Origin
1920s; earliest use found in The Observer. From mystagogue + -ery.
Definition of mystagoguery in US English:
mystagoguery
nounˈmɪstəɡɒɡ(ə)ri
Initiation into mysteries; instruction in arcane knowledge preparatory to such initiation. Often derogatory with suggestion of obscurantism, charlatanism, etc.
Origin
1920s; earliest use found in The Observer. From mystagogue + -ery.