Fuck

Fuck comes from Fornication Under Consent of the King. In the Middle-Ages in England you needed to ask permisson from your king to make children.

Dear Lord and saviour, my King,

Do I, a humble farmer, have ye consent to fornicate and have little babies with me lady?

Sure, why not. Who invented this ridiculous law?!

U did, me sire.

From now on U will just say Fuck, and do it, without my consent.