Origin of mythomania
New Latin, from Greek mythos + Late Latin mania mania
First Known Use: circa 1909
Medical Definition of mythomania
: an excessive or abnormal propensity for lying and exaggerating
Learn More about mythomania
Medical Dictionary: Definition of "mythomania"
Seen and Heard
What made you want to look up mythomania? Please tell us where you read or heard it (including the quote, if possible).