misattribution

noun
mis·​at·​tri·​bu·​tion | \ ˌmis-ˌa-trə-ˈbyü-shən How to pronounce misattribution (audio) \
plural misattributions

Definition of misattribution

: an incorrect attribution (as for a piece of artwork) For decades this portrait had suffered one misattribution after another. More recently the artist had been listed as unknown.— James G. Barber

First Known Use of misattribution

1865, in the meaning defined above

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