Thus Personnel became Human Resources.
But often the new words are, with the passage of time, clearly just as, or more offensive than their predecessors. I mean, "Human Resources"?!! WTF! Are people really just "resources"? To me, Personnel sounds way friendlier.
Another one is around disability. We would never describe someone today as retarded. Yet really, is disabled any better? I'd rather be retarded (as in, slowed down a little) than disabled (completely stopped).
[close to my heart: we write HR software :)]