File this under you research bookmarks. I can’t emphasize enough the merits of doing great dialogue and nailing the time and characters in your novel through it. The subtlest of things can accomplish that. For OP-DEC, I used German. For Blue I referenced relevant events. Etymology dictionaries are available on line. Do we mess up? Sure. But, I’m going to post as many resources on this blog as I can to help all who care to read these posts with their research. That’s what I went to school to learn to do and I’m going to share that with my readers.