The Language of the 3rd Reich was written by Victor Klemperer. In the book he details how the nazis manipulated the people through language.
Some may think that it can’t be very effective but just look at what has happened to the word “Militia” over the past 30 years. It used to conjure images of honor, duty, and patriotism. Today most people think racist hillbillies seeking to overthrow government or homicidal muslims.
Thanks for mentioning that book; now, I will have to find a copy.