Do you own an older version of an english dictionary? And can you help me look up a word?

senneb asked: I’m wondering if older versions of english dictionaries define the word “power language” or “language of power” (how ever you can put it).
I know that Oxford online doesn’t have any results, and I’m pretty sure a newer (book) version doesn’t define it either, so I need to know if dictionaries older than [...]