The quality or state of being bogus; the characteristic of being counterfeit, fake, or fraudulent.
From bogus (adjective, meaning false or counterfeit) + -ness (standard noun-forming suffix for abstract qualities). Bogus itself has uncertain origin, possibly from a surname or a term for counterfeit currency makers.
Bogusness is a modern coinage that shows how English speakers instinctively create abstract nouns—though it's rare enough that many people say 'the bogus nature' instead, showing language in evolution!
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