Can You figure out what these seven words all have in common

TO ALL MY INTELLIGENT FRIENDS:
 
  See if you can figure out what these seven words all have in common.

1. Banana
2. Dresser
3. Grammar
4. Potato
5. Revive
6. Uneven
7. Assess

Are you peeking or have you already given up?
 
Give it another try . . .
Look at each word carefully.
 

No, it is not that they all have at least 2 double letters.
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Answer is below!
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
 

Answer
In all of the words listed, if you take the first letter, place it at the end of the word, and then spell the word backwards, it will be the same word.  Did you figure it out?    Then send this to more people and stump them as well.