One origin story for fuck is that it comes from when sex was outlawed unless it was permitted explicitly by the king, so people who were legally banging had Fornication Under Consent of the King on their doors, or: F. But obviously that's wrong. And if you do believe that, stop it. Stop it right now. But right now there's a post going round with a lovely image of a manuscript from Brasenose College, Oxford, proudly declaring it's the earliest instance of fuck in English although, it notes, that is apart from that pesky one from Scotland and that one that says fuck but is written in code.
Fuck is a profane English-language word  which often refers to the act of sexual intercourse but is also commonly used as an intensifier or to denote disdain. While its origin is obscure, it is usually considered to be first attested to around In modern usage, the term "fuck" and its derivatives such as "fucker" and "fucking" can be used as a noun , a verb , an adjective , an interjection or an adverb. There are many common phrases that employ the word as well as compounds that incorporate it, such as " motherfucker ," " fuckwit ", " fuckup " and " fucknut ".
These words appear in red, and are graded with stars. One-star words are frequent, two-star words are more frequent, and three-star words are the most frequent. The thesaurus of synonyms and related words is fully integrated into the dictionary. Click on the thesaurus category heading under the button in an entry to see the synonyms and related words for that meaning. Definition and synonyms of fuck over from the online English dictionary from Macmillan Education.