Polish (to make smooth and glossy, especially by rubbing or friction: to polish a brass doorknob.) or Polish (Anything from or related to Poland, a country in Europe)
You are also failing to take slang into account Ludwig. Slang is how Language gets used regionally. When something is "Cool" or "Fine" it is pleasant or acceptable, yet those words didn't mean that in the beginning.
Slang is no different from all of the other infinite meanings that the word doesn't have.