Speak of the devil

The popular story

Most people meet speak of the devil as a harmless social reflex. You are talking about someone who is not in the room, the door opens, and in they walk — so you say it, half apology and half joke, and everyone smiles. The common assumption is that the phrase was always this light: a bit of verbal garnish for an awkward coincidence, with the Devil thrown in only for colour.

The fuller saying is often quoted as “speak of the devil and he will appear.” People sense that there was once more to it, and that the modern one-liner is a clipped survivor of something longer. That instinct is correct. What the popular story usually misses is that the longer form was not a joke at all. It was a warning, and people meant it.

What the record shows

The proverb is genuinely old, and it is attested in print. The earliest clearly datable English record appears in 1666, in Piazza Universale di Proverbi Italiani, a collection of Italian proverbs compiled for English readers by Giovanni Torriano. Reporting an existing English saying, he writes:

The English say, Talk of the Devil, and he’s presently at your elbow.

Two details are worth marking. First, Torriano records it as a saying the English already use, which means it was circulating in speech well before 1666. Second, the oldest wording is not the version most people recite today. It begins “Talk of the Devil” rather than “speak,” and it ends with the Devil “presently at your elbow” — an image far more unsettling than the tidy “and he will appear.”

A little later the saying surfaces again, this time with the “appear” ending that feels familiar. In James Kelly’s A Complete Collection of Scotish Proverbs of 1721 it runs, in Scots spelling, “Speak of the Dee’l, and he’ll appear,” glossed as something said when the person spoken of arrives by chance.

Behind both forms sits a real superstition. For centuries it was thought dangerous to name the Devil outright. The taboo sat alongside the older prohibition on lightly speaking the name of God: to name a power was, in some sense, to call on it. Saying “the Devil” aloud risked drawing his attention, or worse, summoning him to your side. That is why English is so rich in nicknames for him — Old Nick, the Deuce, the Dickens, Old Scratch — polite dodges that let people refer to him without naming him. The proverb packaged that fear into a single line: mention him, and he turns up.

The verdict

This is a well-attested proverb, not a guess. Its earliest firm English printing is datable to 1666, it carries a documented superstition rather than an invented backstory, and the softening of that superstition into a joke can itself be tracked in print by the early 1700s. The one caution worth stating plainly is about wording: the version people quote (“speak of the devil and he will appear”) is a smoothed, later descendant of an older “talk of the devil” form, so the modern phrasing should not be projected back onto the 1666 record.

What we don’t know

We cannot name the first person who said it, nor pin down when the saying entered everyday English speech — only that it predates its first printing. The 1666 appearance is the earliest clearly datable record, but it is a snapshot of a phrase already in use, not its birth certificate. Claims that trace the exact line back to Erasmus or to specific Elizabethan playwrights are repeated often but are hard to verify in the precise modern wording; the underlying superstition is clearly older than any single quotation. We also cannot date to a single year the moment it stopped being a warning and became a pleasantry, because that drift happened gradually across the spoken language before the written record caught up.

Usage today

The fear has drained out of the phrase entirely. Today speak of the devil is one of the most good-natured things you can say: a warm, faintly theatrical way to acknowledge that the very person under discussion has just appeared, phoned, or messaged. The second half of the proverb is almost always dropped, because the punchline has already arrived in the flesh — the sentence completes itself when the door opens.

What was once a genuine ward against a dangerous name has become a social lubricant. We use it to cover the small embarrassment of being caught mid-conversation about someone, turning a potentially awkward moment into a shared joke. The Devil is still in the line, but he has been thoroughly declawed — reduced from a summoned menace to a convenient stand-in for “the person we were just talking about.” In that shift from literal dread to light irony, the phrase preserves a fossil of how seriously earlier generations took the power of a spoken name, even as almost no one who uses it now feels a flicker of the old unease.