Finite incantatem. It does other stuff too, but that is one of them:)
luna lovegood uses this spell to fix harry's nose after draco malfoy breaks it. this was in the sixth book.
I never heard the word "patration" in the context of Harry Potter (or otherwise). Check the spelling - perhaps you spelled it wrong.
Harry Potter's patronus takes the shape of a stag, the animagus and patronus form of his father. The Patronus spell is used against Dementors but can also be used as a method of communication.
It was the result of a spell. However, since this didn't occur in the book it is not known what spell was used.
Book two; The Chamber of Secrets. Draco uses it on Harry during Dueling club, that is when the snake appears and Harry starts talking to it.
Digitalis is not a spell in Harry Potter.
Harry Potter's favorite spell was Expelliarmus (disarming spell) but he also used Stupefy (stunning spell) a lot.
In the fourth book, Harry used the spell, Diffindo, to rip Cedric Diggory.
The spell that Harry Potter used to cause Draco Malfoy to bleed continuously in the bathroom duel scene of "Harry Potter and the Half-Blood Prince" is called "sectumsempra".
The spell Expecto Patronum is used for calling your Patronus in Harry Potter.
Lomus or something like that