Words Are PowerFrom abracadabra to AI prompts
Every culture told the same story: say the right words, and the world reorders. English still carries the evidence — and prompting just made the old story literal.

The magician and the muttering bystander stand in the same room, breathing the same air. The difference between them is vocabulary. One knows the words; one waves. Every mythology agrees on this point, which should have been our clue that it was never really about magic. It was about language — about the suspicion, older than writing, that words don't just describe the world but operate on it.
English never let go of that suspicion. It's fossilized in the words themselves.
Grammar, grimoire, glamour: one word, three fates
In the Middle Ages, grammar meant book-learning generally — and to people who couldn't read, a person muttering over a Latin book looked indistinguishable from a person casting something. So the word split. In French, grammaire warped into grimoire: a book of spells. In Scots, grammar warped into glamour: the enchantment that deceives the eye — you cast a glamour centuries before you wore one. A book of grammar and a book of magic were, for a while, the same object. The people who feared literacy were not wrong about what it was: an asymmetric power, held by those with more words.
Why “spell” means both letters and magic
The same double life hides in spell. In Old English a spell was a story, a speech, a piece of news — gōdspell, the good news, survives as gospel: literally the good spell. Spelling out letters and casting an enchantment grew from the same root, because to a mostly oral world they were the same act: producing exact words, in exact order, with consequences. Get the sequence wrong and the charm fails. Ask any programmer.
Abracadabra was a prescription
The most famous magic word entered the record not on a stage but in a medical text. In the third century, Serenus Sammonicus' Liber Medicinalis prescribed writing abracadabra in a diminishing triangle — one letter fewer per line — and wearing it as an amulet until the fever shrank away with the word. Where the word itself came from, nobody knows; the popular gloss that it's Aramaic for “I create as I speak” is a folk etymology too perfect to be trusted. What's documented is stranger: for centuries, educated people treated a written word as a dose.
Invoke, conjure, enchant: the programmer's séance
Look at the verbs software borrowed. You invoke a function — from Latin invocare, to call upon a god. You conjure an environment — coniurare, to bind spirits by sworn names. An incantation is literally a thing sung onto something (incantare), and its softened descendant is enchant. The people who named computing's rituals reached, apparently without irony, for the vocabulary of summoning. It took another fifty years for the joke to become a spec sheet: today you type words into a box, and the words call something forth.
The power of the true name
The oldest rule of word-magic is that knowing a thing's true name gives you power over it. Isis becomes mighty by tricking Ra into revealing his hidden name. Rumpelstiltskin is defeated not by strength but by being named. The golem of Prague wakes with emet — truth — written on its forehead, and dies when one letter is erased, leaving met: dead. Ursula K. Le Guin built all of Earthsea on the rule: wizardry there is a lifetime spent learning what things are actually called. Replace wizardry with prompting and the sentence still scans. Ask a model for “that painting style with the light” and you flail; say tenebrism and it obeys. The true name works.
When a word is a weapon
Words have also been checkpoints. In the Book of Judges, the Gileadites identified enemy Ephraimites by making refugees say shibboleth — an ear of grain, nothing more — because Ephraimites couldn't produce the sh. The Bible counts forty-two thousand killed by a mispronunciation. A shibboleth now means any phrase that sorts insiders from outsiders, and a formal curse of expulsion still goes by anathema — a word that once removed you from the community as effectively as a sword.
Words that do things
Philosophy caught up in 1955, when J. L. Austin pointed out that some sentences don't describe actions — they are actions. “I do.” “I name this ship.” “I hereby resign.” He called them performatives and titled the lectures, perfectly, How to Do Things with Words. Genesis had made the same point earlier and more compactly: let there be light is not a report. Scripture, wedding vows, and court rulings all run on the same engine — utterances that change the state of the world by being uttered.
The prompt is the spell, fulfilled
Arthur C. Clarke said any sufficiently advanced technology is indistinguishable from magic, but prompting is something more specific: it is the one particular magic every culture already believed in. A text box where saying it makes it so. The system prompt is the standing enchantment; the negative prompt is the ward; the model does exactly what the words say and nothing the words fail to say. Which restores the old economy of power: the magician and the mutterer, same room, same tool — separated only by the lexicon. Words are power. They were just waiting for the hardware.
The spellbook, as vocabulary
The words of verbal magic are a collection on Segue — each with its full illustrated entry, etymology, and practice.
Build your spellbook
The Prompting collections — Words of Power, Light, Color & Composition, and Tone & Register — turn this vocabulary into flashcards, quizzes, and typing practice. For the practical half of the argument, see Prompting Is a Vocabulary Problem.
Open the Prompting collections