effect

Definitions

General English

  • plural noun sounds, images or displays that are created for a film or event.
  • plural noun the things that you own

General Science

  • noun something which happens as the result of an action
  • verb to carry out or bring about something

Aviation

  • noun something which results from a cause
  • noun the condition of being in full force
  • verb to cause or carry out

Medical

  • noun a result of a drug, treatment, disease or action
  • verb to make something happen

Travel

  • noun a change that happens as the result of an action done by somebody

Origin & History of “effect”

Etymologically, an effect is that which is ‘accomplished’ or ‘done’. The word comes (probably via Old French effect) from effectus, the past participle of Latin efficere ‘perform, accomplish, complete’, or literally ‘work out’. this was a compound verb formed from the prefix ex- ‘out’ and facēre ‘make, do’ (source of English fact, factory, etc). The English verbal use, ‘bring about’, is a 16th-century development based on the noun. (The similar affect also comes ultimately from Latin facēre, but with the prefix ad- ‘to’ rather than ex-.) Latin efficere is also the source of English efficacious (16th c.) and efficient (14th c.).

The feck- of feckless is an abbreviated version of effect.
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