Existence of words

Even though the words which we use very often may not give an intersting look unless we know something special about that word. Likewise in our day to day life we use the word fuck, lets see how it came into survival. In ancient england people could not have sex without the permission from the king. So those want to have a baby  they had to get the King's  consent for sex. If they are able to get the King's permission then they were then given a card to hang on the door while making love. It said "Fornication Under Consent of the King" (FUCK). Thus the word fuck came into existence.