The meaning of Anagramming and additional information.

Anagram(n.) Literally, the letters of a word read backwards, but in its usual wider sense, the change or one word or phrase into another by the transposition of its letters. Thus Galenus becomes angelus; William Noy (attorney-general to Charles I., and a laborious man) may be turned into I moyl in law.

Anagram(v. t.) To anagrammatize.