Occult lore
Abracadabra
Direct answer
Abracadabra is a charm word first recorded in Roman medicine of the third century, written as a shrinking triangle on an amulet worn against fever, and later the stock word of stage conjurors.
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At a glance
- Found in
- Spells & Occult Terms
- Related
- Amulet, Charm, Sympathetic Magic, Greek Magical Papyri
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What does abracadabra mean?
Abracadabra is a word of power with a documented beginning. A Roman medical poem tells the patient to write it on papyrus, then write it again on each line below with one letter fewer, until a single A is left. The triangle was folded, tied with flax and hung at the neck. The thought behind it is plain sympathetic magic: as the word dwindles, so should the fever.
Nobody knows what the word meant. The often repeated derivation from an Aramaic phrase, I create as I speak, has no ancient source behind it, and links to the name Abraxas or to Hebrew words are guesses too. By the nineteenth century it had become the stage magician's patter word, which is how most people meet it now.
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What sets Abracadabra apart
Unlike most magic words, abracadabra arrives with instructions. Serenus gives the method in verse: write the word, repeat it beneath with the last letter removed, and go on until one letter stands alone, so that the text forms a downward pointing cone. The word itself did nothing when spoken; it worked, in the logic of the charm, by being seen to vanish. That makes it a written amulet of the disappearing kind, a family well known from Greek papyri, and not an incantation.
- First source: Quintus Serenus Sammonicus, Liber Medicinalis, early third century CE
- Original purpose: an amulet against a recurring fever the Romans called hemitritaeus
- Layout: eleven lines, each one letter shorter, ending in a single A
- Plague use: reported for London in 1665 by Defoe's Journal of the Plague Year (1722)
- Variant: Abrahadabra, Crowley's spelling in The Book of the Law, 1904
Often mistaken for something else: Hocus pocus is a conjuror's phrase first recorded in the seventeenth century with no amulet behind it; abracadabra was a medical charm for some 1,500 years before it reached the stage.
The story behind Abracadabra
The earliest record is the Liber Medicinalis of Quintus Serenus Sammonicus, a Roman author of the early third century, who prescribes the amulet for a recurring fever. Daniel Defoe's A Journal of the Plague Year (1722) says Londoners wore the triangle against the plague of 1665. Aleister Crowley respelled it Abrahadabra in The Book of the Law (1904) and built his own meaning on the new spelling.
Why Abracadabra matters
Abracadabra is one of the few magic words whose first written use can be dated and read, so it shows what a Roman protective charm really looked like.
How to read Abracadabra
Today it is spoken as a flourish in conjuring and in everyday speech; historically it was written, never said, and worn on the body until the illness passed.
Abracadabra in practice: an example
A museum label beside a folded lead or paper charm may show the word stepping down line by line to one letter, the fever amulet Serenus described.
Where readings of Abracadabra go wrong
Abracadabra’s history is as a folk remedy that had no medical effect; a fever that persists needs a doctor, not a charm.
Sources and editorial method
This entry summarizes the tradition in the Almanac's own words; where no source is listed, it is an editorial summary rather than a primary text, and symbolic readings are named as the tradition's, not as fact.
Recorded here as history and lore. No rite is taught on this page.
- Source
- The Great Almanac Dictionary
- Category
- Spells & Occult Terms
- Aliases
- abracadabra meaning, abracadabra origin, abracadabra amulet, abracadabra triangle, what does abracadabra mean
- Last updated
- 2026-09-26
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Common questions
What does abracadabra mean?
Its meaning is unknown. It first appears in a Roman medical poem of the third century as a word to write on a fever amulet. Popular explanations from Aramaic or Hebrew are later guesses without ancient evidence.
Why was abracadabra written as a triangle?
The word was written out in full and then repeated with one letter dropped each line until only A remained. The shrinking shape pictured the illness shrinking away, a common pattern in ancient charms.
Is abracadabra Hebrew or Aramaic?
No ancient Hebrew or Aramaic text contains it. The oldest source is Latin, and scholars do not agree on any derivation, so the honest answer is that its language of origin is not known.
