At one point we used to "press" people to do something; then we "pressured" them. Now we "pressurise"them!
Really!??

Add to your "unique" list - comprehensive.Not to be used with a comparative or superlative, surely? Either it's comprehensive, or it isn't.

And what about "alternate" and "alternative"?

Seem to mean the same thing in US English, but not in British English.