what is the definition of dauphin this huckleberry finn?

Question

I searched on the internet but there were so many i didn't know which one was used in the book

Answer 1

also the word valley on page 174( at least in my book) its in the context that reads "the king said the cubby would do for his valley- meaning me"

Answer 2

This is the definition from Dictionary.com.

"the eldest son of a king of France, used as a title from 1349 to 1830. "

Check this article for more information.

http://en.wikipedia.org/wiki/Adventures_of_Huckleberry_Finn#The_Duke_and_the_King

Answer 3

That's probably a misspelling and mispronunciation of "valet."