|like a palindrome|
||A word is a palindrome if it is spelled the same forward as backward. What is a word that, spelled backward, makes a different, but legitimate, word (eg, dog --> god)?|
||Well, surely it's the degenerate case of an anagram, but I don't believe that there is a precise term specifically for what one might refer to as literally-reversable word-pairs (as opposed to phonically-reversable). Perhaps one word could be refered to as the other's palindromic anagram, or more simply just as that word spelled backwards.|
||Two words that happen to spell each other when reversed are generally just called reversals. However, some people have to be clever and call them semordnilaps.|
I should also note that you can find a list of long (>= 6 letters) at the bottom of this page: http://members.aol.com/gulfhigh2/words5.html|
Some 4 letter reversals that I find interesting are flog-golf, flow-wolf, ergo-ogre, and iron-nori.