To my intelligent friends

TO ALL MY INTELLIGENT FRIENDS:
> I am sending this only to my smart friends. I could not figure it out.
> My first thought was wrong and I had to look at the answer. 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
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> Are you peeking or have you already given up?
>
> Give it another try....
> Look at each word carefully.
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> You'll kick yourself when you discover the answer. This is so good...
>
> No, it is not that they all have at least 2 double letters.
>
> Answer is below!
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> 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? No? Then send this to more
> people and stump them as well. Then, you'll feel better too.