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Healing

The Abracadabra Amulet

Also called Diminishing word charm, Abracadabra triangle

A Roman fever charm in which the word ABRACADABRA is written in a shrinking triangle, one letter lost per line, so the illness shrinks with it. A historical charm only; anyone with a fever should see a doctor.

TraditionLate Roman medical magic
RegionRoman Empire
Era2nd to 3rd century CE
Moon☾ Waning moon
DayAny
ElementAir
Difficulty●○○ Simple
Time15 minutes

Tonight's moon is read when the page loads.

The working

  1. Write ABRACADABRA in capitals across the top of the paper.
  2. On each line below, write the word again with its last letter dropped, so the lines shrink to a single A at the point of a triangle.
  3. As you write each shorter line, picture whatever is troubling you shrinking by the same amount. The modern habit is to use it for a nagging worry or a bad habit.
  4. Fold the paper into a small square and thread linen through it.
  5. Keep it on you or hang it near your bed until the trouble eases.
  6. Then bury it or burn it safely to finish the charm.
  7. If you have a fever or feel unwell, get medical care. This is a piece of history, not a remedy.

Take care: Historical charm only, not medical treatment: a fever needs a doctor, especially with a rash, stiff neck, confusion or a fever in a baby. Burn the paper only in a fireproof dish away from anything flammable.

Versions across time and place

i

Serenus Sammonicus' fever amulet

Roman physician's prescription · Early 3rd century CE

Serenus, physician at the court of the emperor Caracalla, told patients with a recurring fever (the hemitritaeus, likely a form of malaria) to wear the word written as a triangle on a parchment hung from the neck by a linen thread. This is the earliest known record of the word.

Uses: parchment, linen thread

Recorded in: Serenus Sammonicus, Liber Medicinalis, chapter 52
ii

Plague doorways in London

English popular protection · 1665

Defoe's account of the Great Plague of London mocks people who wrote the word on doorways or wore it as a charm to keep sickness away. His scorn shows how widely it was still known 1,400 years after Serenus.

Recorded in: Daniel Defoe, A Journal of the Plague Year (1722)
iii

Other diminishing words

European folk charms · Medieval to early modern

The same shrinking pattern was applied to other words and names, written on paper and worn or thrown away. The triangle's shape was understood as a funnel that drained the illness away.

Uses: paper

Recorded in: Discussed in histories of amulet magic; see Wikipedia, Abracadabra

History

The word ABRACADABRA first appears in the Liber Medicinalis of Quintus Serenus Sammonicus, a Latin poem of medical advice usually dated to the early third century. Serenus is traditionally said to have served the emperor Caracalla and to have been killed on his orders in 212 CE. His remedy for a dangerous recurring fever was the triangle charm, worn around the neck.

No one knows for sure where the word came from. Suggestions include Aramaic phrases and the Gnostic name Abraxas, but none is proven. The amulet stayed in use through the Middle Ages and into the early modern period, and Daniel Defoe noted Londoners using it in the plague of 1665. Only in the nineteenth century did stage conjurers turn it into the magician's word we know today.

Sources

  1. Abracadabra · Wikipedia contributors, 2025
  2. Liber Medicinalis · Quintus Serenus Sammonicus, c. 210
  3. A Journal of the Plague Year · Daniel Defoe, 1722

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