I understand that the word spook is a racial slur that rose in usage during ww2,WWII; I also know Germans called black gunners spookwaffeSpookwaffe. What I don't understand is why. why.
Spook seems to also mean 'ghost' in German. Did the Americans call them spooks because the Germans did? If so, why did the Germans call them that? Or, if the Germans called them that because Americans called them spooks, then why did the Americans call them that? And how did Americans know the Germans had a nickname for black gunners?