psyche // n human soul or mind: Is aggression an essential part of the human psyche?
» psyche (also psych) // v (informal) 1 [Tn, Tn⋅p] ~ sb (out) make sb nervous or less confident, etc, especially in psychological means: Her arrogant behaviour on court psyched her opponent (out) completely. 2 (phrasal verb) psyche sb/oneself up prepare sb/oneself mentally for sth: She had really psyched herself up for the big match.