Board Thread:Suggestions forum/@comment-26897694-20151007002712/@comment-26236093-20151008064153

Khuzdul1 wrote: TheDwarvenGuy wrote: That part of the hobbit film wasn't canon, and he was probably named that because his shield was made of oak, and not an oak log. Hobbit film, na it wasn't only in the film. read lotr return of the king, appendix A

The appendices gives the following foot note on this topic on page 1410, you will find that this is in fact cannon...

"It was said that Thorin's shield was cloven and he cast it away and he hewed of with his axe a branch of an oak and held it in his hand to ward off the strokes of his foes, or to wield as a club, in this way he recieved his title "