psy·chog·no·sis \ˌsīkəgˈnōsə̇s\noun alsopsy·chog·no·sy\sīˈkägnəsē\ (pluralpsychogno·ses \-ōˌsēz\ ; alsopsychognosies \-əsēz\) Etymology:psych- + -gnosis or -gnosy : the study of the psyche especially as concerned with the individual character < the biognosis and psychognosis of group life — J.W.Powell > — compare psychoanalysis