information n.

early 14c., "to train or instruct in some specific subject," from Old French informer, enformer "instruct, teach" (13c.) and directly from Latin informare "to shape, give form to, delineate," figuratively "train, instruct, educate," from in- "into" (from PIE root *en "in") + formare "to form, shape," from forma "form" (see form (n.)). In early use also enform until c. 1600. Sense of "report facts or news, communicate information to" first recorded late 14c. Related: Informed; informing.

"The dissemination of deliberately false information, esp. when supplied by a government or its agent to a foreign power or to the media, with the intention of influencing the policies or opinions of those who receive it" [OED], 1955, from Russian dezinformatsiya (1949), which is said to be from French désinformation, but the French word is not as old as the Russian one; see dis- + information.

Simply put, disinformation is a falsehood created with the intention to cause harm. Misinformation is also false, but created or shared without the intention to deceive others. [New York Times, Oct. 26, 2020]