[psych-] or psycho- comb form [Gk, fr. psyche breath, principle of life, life, soul, fr. psychein to breathe; akin to Skt babhasti he blows] 1: mind: mental processes and activities "psychodynamic" "psychology"
2: psychological methods "psychoanalysis" "psychotherapy"
3: brain "psychosurgery"
4: mental and "psychosomatic"