I'll answer three of Dave's recent suggestions in this one thread.
As Dave implies, words that are used in such well-known writings as the King James Bible and Shakespeare's works have a strong case for being allowed, even where the words are now archaic. On this basis, we've added several -eth and -est verb inflections on previous occasions.
The words Dave proposes - aileth, healeth and readest - will all be added and, for the sake of at least some degree of consistency, I'll also add the related words ailest, healest and readeth.