Go to 'thermo-' entry Go to 'dino-' entry Go to 'chondro-' entry Go to 'aero-' entry Go to '-logy' entry Go to 'thaumato-' entry Go to 'nano-' entry Go to '-sophy' entry Go to 'bucco-' entry Go to '-ism' entry Go to '-lysis' entry Go to 'galacto-' entry Go to '-anthropy' entry Go to 'pneumo-' entry Go to '-ploitation' entry Go to '-lithic' entry Go to '-sepalous' entry Go to 'onco-' entry Go to '-parous' entry Go to 'dermato-' entry Go to 'multi-' entry Go to 'dodeca-' entry Go to '-zoon' entry Go to 'vermi-' entry Go to 'crystallo-' entry Go to 'biblio-' entry Go to 'eco-' entry Go to 'juxta-' entry Go to 'facio-' entry
Affixes: the building blocks of English
Affixes: the building blocks of English

psych(o)-

The mind; psychology.

[Greek psukhē, breath, soul, mind.]

Psychology is the scientific study of the human mind and its functions, while psychiatry studies and treats mental illness, emotional disturbance, and abnormal behaviour; a psychopath is a person suffering from chronic mental disorder with abnormal or violent social behaviour; psychotherapy is the treatment of mental disorder by psychological rather than medical means; a psychedelic drug (Greek delos, clear, manifest) is one, especially LSD, that produces hallucinations and apparent expansion of consciousness.

Several terms relate to cross-disciplinary subjects involving psychology or perception: psychoacoustics is the branch of psychology concerned with the perception of sound and its physiological effects; psychobiology deals with the biological basis of behaviour and mental phenomena; psychohistory interprets historical events with the aid of psychological theory; psycholinguistics studies the relationships between linguistic behaviour and psychological processes.

Visit Michael Quinion’s World Wide Words site for 2000+ articles on English!

Copyright © Michael Quinion 2008–. All rights reserved. Page last updated 23 September 2008.
Your comments and suggestions on the site are very welcome.