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

hypn(o)-

Sleep; hypnosis.

[Greek hupnos, sleep.]

The adjective hypnagogic (or hypnogogic) refers to the semiconscious state immediately before falling asleep (Greek agōgos, leading to); its opposite is hypnopompic (Greek pompē, sending away); in medicine, a hypnotic is one of a class of drugs that induces sleep; hypnopaedia is learning by listening to recordings during sleep.

Hypnosis is a trance-like state that resembles sleep, induced by the monotonous repetition of words or gestures. Some terms in hypno- refer to the state: hypnogenesis is its induction, and hypnotherapy is its use as a therapeutic technique; hypnotic can also be an adjective relating to this state, or to something compelling or soporific.

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