The door of durin.

[Galin]

Originally Posted by Kuruharan

While from a certain perspective your point is accurate, remember too that dwarves used outer names that were used in public and used for door carvings and inner ones. Not using their real dwarvish names was entirely appropriate.

I do remember


But the Dwarves no more had names in Old Norse than the Rohirrim had names in Old English... only the modern translator can put these in the book.

As Tolkien realized the absurdity of 'Balin' written on the (drawing of the) tomb, the same must go for Durin and Narvi. Frodo might have written Moria for hadhodrond, but he cannot have written Durin and Narvi, nor can anyone else living 'back then' (in Frodo's day) have written these names.

For another example: Samwise wasn't Sam's real name, he was called Ban (for short): it would be like a letter being written in actual Westron with the name 'Samwise' in it! this name would mean nothing to the Hobbits; it's an invention of the modern translator (based on a language not yet arisen in Frodo's day).