名詞 anagram:

1. a word or phrase spelled by rearranging the letters of another word or phrase

動詞 anagram:

1. read letters out of order to discover a hidden meaning
   同義詞：anagrammatize, anagrammatise

an.a.gram

n.（名詞）
A word or phrase formed by reordering the letters of another word or phrase, such assatin to stain.
換音造詞法，回文構詞法：變換字母順序以形成另一詞，如Satin 變?yōu)?Stain
anagrams (used with a sing. verb)Games A game whose object is to form words from a group of randomly picked letters.
anagrams （與單數動詞連用）【游戲】 字謎游戲：用隨意選出的一組字母組成單詞的游戲

來源：
New Latin anagramma
現代拉丁語 anagramma
from Greek anagrammatismos
源自 希臘語 anagrammatismos
from anagrammatizein [to rearrange letters in a word]
源自 anagrammatizein [重新安排單詞里的字母]
ana- [from bottom to top] * see ana-
ana- [從底到頂] *參見 ana-
gramma grammat- [letter] * see gerbh-
gramma grammat- [字母] *參見 gerbh-

【引伸】
an.agrammat.ic
an.agrammat.ically
adv.（副詞）