IPA: /kæˈθɛksɪs/
KK: /kæˈθɛksɪs/
The focus of emotional energy or mental investment on a person, object, or idea.
Her cathexis on her art project helped her to create a masterpiece.
Cathexis is derived from the Greek word "kathexis" (καθέξις), meaning holding or investment. The root "kathēkhein" (καθέχειν) means to hold or to occupy. The term is used in psychology to describe the investment of mental or emotional energy in a person, object, or idea.
Think of 'holding' or 'investing' emotional energy in something — that's what cathexis means.