Definition - A reordering of the letters of a word or phrase that results in a new word or phrase being formed.

Example -
The word dog is an anagram of the word god.

Etymology -
The word derives from the Greek anagrammatizein, to transpose letters (from the Greek ana, up or back + gramma, letter).

Oxford English Dictionary -
Its first citation is from 1589:
"Of the Anagrame, or poesie transposed."
(Puttenham Eng. Poesie (Arb.) 115)

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