This puzzle has two related parts.

Part I
The words below share an unusual property. Can you determine what it is/

BANANA
ASSESS
DRESSER
GRAMMAR
UNEVEN

Answer to Part I

If you move the first letter of each word to the end of the word, the word reads the same - but backward. 

Part II
Can you think of a common word in which you move the last letter of the word to the beginning of the word, so that the word reads the same - but backward?

Answer to Part II

SELFLESS