Originally Posted by
AFDavis11
I believe it went like this:
Originally there were "razors", that were what we know today as a straight razor.
Then the "hoe" style safety razor was invented. The razor had a 90 degree angle, or greater, so it can be used by the person shaving themselves easier. Naturally, the names "angled", or "bent", or "broken", or "obtuse", didn't make much sense. Since the blade was protected and since rust was easily preventable the name "safety" seems to have caught on pretty well.
So we have two razors, those that are "safety" razors, and those that were "straight".
This prevented the terms "unstraight" or "unsafety", which I'm sure we all appreciate.