I mean the whole stupid Grokipedia thing is a shit show that will never take off, but Fuhrer is just "leader" in German. In it's used context for Hitler it straight up means dictator and (iirc) only came into full on use after the plebiscite giving him full dictatorial power after Hindenburg's death in 1934 (edit: He was already the Reich's Chancellor and merged in Hindenburg's powers with the vote to make himself full dictator / Fuhrer).
I'd welcome input from a German national - Is the word still used there?
