counterfeit

adjective | \ ˈkau̇n-tər-ˌfit \ | coun·ter·feit
  1. : made in imitation of a genuine article (as a document) without authorization and especially with intent to deceive or defraud

counterfeit

transitive verb
  1. : to make an imitation of without authorization and especially with intent to deceive or defraud whoever falsely makes, alters, forges, or counterfeits any deed —U.S. Code

counterfeit

noun
  1. : something counterfeit all counterfeits of any coins or obligations —U.S. Code — compare forgery