| | Urban Legends Reference Pages: Language (What the Fuck?) |
 | | Supposedly "swive" was excised from texts by the Censors and replaced with the inscription "For Unlawful Carnal (or Cardinal?) Knowledge" — or at least its initials. |
 | | The second path has the word deriving from the short form of 'For Unlawful Carnal Knowledge.' Variously, adulterers, rapists, child molesters, and them wot engaged in premarital hanky panky were, as part of their punishment, sentenced to wear a placard announcing their wrongdoing. |
 | | How utterly prosaic to find out 'fuck' came to us the way most words sneak into the language — it jumped the fence from another tongue, was spelled and pronounced a bit differently in its new home, and over time drifted into being a distinct word recognized by everyone. |
| www.snopes.com /language/acronyms/fuck.htm (1322 words) |