汉：前前缀psycho-来源于希腊语，意为“breath,mind,soul”等。在元音字母前，字母o脱落。
英：word-forming element meaning "mind, mental," from Gk. psykho-, combining form of psykhe (see psyche).
1.psyche
n.human soul or spirit 灵魂，精神 psych=psych=mind
Aggressive tendencies lie deep in the human psyche.
攻击性倾向深存于人类精神世界中。

2.psychedelic
adj.hallucinatory 引起幻觉的，致幻的 psych=psycho=mind;del=destroy
The psychedelic drug endanered his sanity.
这种迷幻剂危及他的精神健康。

3.psychiatrist
n.expert in the treatment of mental illness 精神科医生 psych=psycho=mind,iatr=healing
She's seeing a psychiatrist twice a week of for her problems.
她为自己的问题每周看两次精神医生。

4.psychology
n.study of the mind and its processes 心理学
psych=psycho=mind,ology=science
James'degree in psychology has helped him a lot in his advertising career.
詹姆斯心理学位对他的广告工作大有裨益。