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

aut(o)-1

Self; oneself; by itself.

[Greek autos, self.]

A person writing the story of their own life produces an autobiography; an autocrat retains power in himself; an autodidact is a self-taught person; something or someone autonomous can operate independently; an autopsy, a post-mortem examination, literally means ‘seeing for oneself’ (Greek autoptēs, eyewitness, from optos, seen).

The form often refers to equipment that operates by itself, automatically: an autopilot keeps an aircraft on course without the pilot's intervention; a autofocusing camera focuses without human assistance; automation is the introduction or use of automatic equipment in a factory. An autoclave, a vessel used to sterilize items, was so called because it was self-fastening (either from Latin clavis, key, or clavus, nail, nobody seems sure which).

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