psychognosis

noun
psy·​chog·​no·​sis | \ ˌsī-kəg-ˈnō-səs, -ˌkäg- How to pronounce psychognosis (audio) \
plural psychognoses\ -​ˈnō-​ˌsēz How to pronounce psychognoses (audio) \

Medical Definition of psychognosis

: the study of the psyche in relation to character