Palindrome

 Palindrome

from the Greek palin-dromos , running back again. This is a word, sentence, or verse that reads the same both forwards and backwards—as, madam, level, reviver; live on no evil; love your treasure and treasure your love; you provoked Harry before Harry provoked you; servants respect masters when masters respect servants. Numerous examples of Palindrome or reciprocal word-twisting exist in Latin and French; but in English it is difficult to get a sentence which will be exactly the same when read either way. The best example is the sentence which, referring to the first banishment of the Great Napoleon, makes him say, as to his power to conquer Europe:
"Able was I ere I saw Elba."