| 词汇 | psych |
| 词根词缀 | 词源： short for psychology in various senses; as an academic study, in student slang by 1895. The verb is generally negative when used transitively, positive when intransitive; first attested (also psych out) 1934 as "to outsmart," from 1963 as "to unnerve." However to psych (oneself) up is from 1972; to be psyched up is attested from 1968. |
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