According to Crosswalk, this King James Dictionary contains over 800 words whose definitions have changed since 1611. I would guess that in many cases, the definitions may still be in unabridged dictionaries but we just don't commonly use them that way today. I haven't used this tool, so can't really recommend it but am rather just pointing out that it is there. If some of you use it, you might stop back by and comment on it. Thanks.