affect
v.v. to cause a change in someone or something. You use this when one thing has an effect on another thing.
v. to produce an effect upon; to influence or cause a change in a person, thing, or situation. Transitive — requires a direct object.
The cold weather will affect the plants in the garden.
The new government policy will directly affect how much tax small businesses have to pay each year.
While the immediate results were positive, researchers are still unsure how the long-term exposure to these chemicals will affect the local ecosystem and the health of the residents.
From Middle English affecten, from Latin affectāre, from Latin affectus, the participle stem of Latin afficere (“to act upon, influence, affect, attack with disease”), from ad- + facere (“to make, do”).
From Middle English affecten, from Anglo-Norman affecter (“strive after”), Middle French affecter (“feign”), and their source, Latin affectāre (“to strive after, aim to do, pursue, imitate with dissimulation, feign”), frequentative of afficere (“to act upon, influence”) (see Etymology 1, above).
From Middle English affect, from Latin affectus, adfectus (“a state of mind or body produced by some (external) influence, especially sympathy or love”), from afficere (“to act upon, influence”).
The verb is transitive and takes a direct object.
the affect ofthe effect ofLearners confuse the verb 'affect' with the noun 'effect'.