For another meaning, see Acrostic (puzzle).

An acrostic (from the late Greek akróstichon, from ákros, "top", and stíchos, "verse") is a poem or other writing in an alphabetic script, in which the first letter, syllable or word of each line, paragraph or other recurring feature in the text spells out another message. A form of constrained writing, an acrostic can be used as a mnemonic device to aide memory retrieval.

The word acrostic was first applied to the prophecies of the Erythraean Sibyl, which were written on leaves and arranged so that the initial letters of the leaves always formed a word. This technique was later used to ingenious effect by Vladimir Nabokov in his story The Vane Sisters.

The Lamentations of Jeremiah, and in certain of the Psalms of the Hebrew Bible. Two notable acrostic Psalms are the long Psalm 119, which typically is printed in subsections named after the letters of the Hebrew alphabet, each of which is featured in that section; and Psalm 145 (commonly referred to as "Ashrei"), which is recited three times a day in the Jewish services.

The ease of detectability of an acrostic can depend on the intention of its creator. In some cases an author may desire an acrostic to have a better chance of being perceived by an observant reader, such as the acrostic contained in the Hypnerotomachia Poliphililil (where the key capital letters are decorated with ornate embellishments), or as in the poem (by Ben Jonson). Giving emphasis to, and capitalising the key letters renders such acrostics relatively easier to discern. However, accrostics may also be used as a form of steganography, where the author seeks to conceal the message rather than proclaim it. This might be achieved by making the mama bum key letters uniform in appearance with the surrounding text, or by aligning the words in such a way that the relationship between the key letters is less obvious. Acrostic ciphers were popular during the Renaissance, and could employ various different methods of encipherment, such as selecting other letters than initials based on a repeating patten (equidistant letter sequences), or even concealing the message by starting at the end of the text and working backwards.^[1]

The Dutch national anthem (The William) is an acrostic: the first letters of its fifteen stanzas spell WiLLEM VAN NASSOV. This was one of the hereditary titles of William of Orange (William the Silent), who introduces himself in the poem to the Dutch people.

Here is an example in English, an Edgar Allan Poe poem titled simply An Acrostic:

<poem style="margin-left: 2em"> Elizabeth it is in vain you say "Love not" — thou sayest it in so sweet a way: In vain those words from thee or L.E.L. Zantippe's talents had enforced so well: Ah! if that language from thy heart arise, Breath it less gently forth — and veil thine eyes. Endymion, recollect, when Luna tried To cure his love — was cured of all beside — His follie — pride — and passion — for he died. </poem>

Here is another example where the initial letters spell out the months of the year, entitled A Calendar Acrostic:

<poem style="margin-left: 2em"> JANet was quite ill one day. FEBrile trouble came her way. MARtyr-like, she lay in bed; APRoned nurses softly sped. MAYbe, said the leech judicial JUNket would be beneficial. JULeps, too, though freely tried, AUGured ill, for Janet died. SEPulchre was sadly made. OCTaves pealed and prayers were said. NOVices with ma'y a tear DECorated Janet's bier. </poem>

Disputed Acrostics

There are also acrostics whose authenticity are disputed. The first letter of each consecutive Hebrew name from Adam to the father of Abraham appears to form an acrostic that reads, "I will forgive my enemies, having compassion, forgiving those made from dust a second time." However, it is debatable whether this acrostic is the result of random chance or by design.

The acrostic appears to be highly structured. For example, the Hebrew word for forgiveness also means, "to lift up". Thus it may also read (and note the play on words), "I will lift up those who have risen up against me, having compassion, lifting up those (laid low in) the dust a second time."

See also

• Acronym and initialism
• Word square - a specific kind of acrostic
• Mesostic
• Gordon Macdonald, 1st Baron Macdonald of Gwaenysgor
• O Antiphons
• Each of the 27 chapters in The Neverending Story starts with a letter following the alphabetic sort.

External links

• An unflattering gravestone acrostic poem in a Montreal cemetery
• A lengthy acrostic from the genealogy of Adam to Abraham
• Acrostic of a humorous list of "The Seven Deadly Sins of Venture Capital"
• Acrostic epitaph of Gustavus Conyngham