acrostic
noun /əˈkrɒstɪk/
/əˈkrɔːstɪk/
- a poem or other piece of writing in which particular letters in each line, usually the first letters, can be read downwards to form a word or words
离合诗，离合诗体（各行的某些字母、通常是开头字母可组合成词） 词源late 16th cent.: from French acrostiche, from Greek akrostikhis, from akron ‘end’ + stikhos ‘row, line of verse’. The change in the ending was due to association with -ic.