misinformation

noun
mis·in·for·ma·tion | \ˌmis-ˌin-fər-ˈmā-shən \

Definition of misinformation 

: incorrect or misleading information Indubitably, a great deal of paranoid and otherwise irresponsible misinformation about the Kennedy assassination has traveled far and sold well …— Ronnie Dugger A muddle of misinformation keeps clouding the debate over hormone-replacement therapy for women.— Melinda Beck Each of these pieces of information (and misinformation) about me is sold for about two-fifths of a cent to advertisers, which then deliver me an Internet ad, send me a catalog or mail me a credit-card offer.— Joel Stein

First Known Use of misinformation

1605, in the meaning defined above

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The first known use of misinformation was in 1605

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