These kind of things make interesting language study, whether considering biblical words or just words in general. Many words that we think have changed meaning often have not. At least some of them came into the language separately, and have been homonyms without our knowing it.At one time, there were two different words spelled "bravery" that came into English with different meanings....
Dictionary.com gives both of the meanings.Only one of the words may be in present use, but the other word with the different meaning was used in the KJV.
noun
1. brave spirit or conduct; courage; valor.
2. showiness; splendor; magnificence.