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Sense: 1-2
Date: 1300-1400
Language: Latin
Origin: , past participle of afficere 'to influence', from ad- 'to' + facere 'to do'
Sense: 3
Date: 1400-1500
Language: French
Origin: affecter, from Latin affectare, from afficere

affect

verb
     
af‧fect S1 W1 [transitive]
1 to do something that produces an effect or change in something or in someone's situation:
the areas affected by the hurricane
a disease that affects the central nervous system
decisions which affect our lives
Trading has been adversely affected by the downturn in consumer spending.
2 [usually passive] to make someone feel strong emotions:
We were all deeply affected by her death.
3 formal to pretend to have a particular feeling, way of speaking etc:
As usual, Simon affected complete boredom.
He used to affect a foreign accent.

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