‘Quick’ Didn’t Always Mean ‘Fast’. Here’s Its Surprising Original Meaning

“Quick” is a word people say all the time as a synonym for fast. But most probably don’t realise that the word used to mean something very different.

Like “nice” and “awful” (which used to mean “ignorant” and “worthy of awe”, respectively), the word quick has travelled some distance from its original meaning. But it does manage to hold onto a little bit of the old and new at the same time. 

“Quick originally meant alive, not fast,” Sophie Vignoles, a linguist and head of learning content at the language learning app Babbel, told HuffPost.

“It comes from the Old English ‘cwic.’ That older meaning survives in the phrase ‘the quick and the dead,’ which means ‘the living and the dead.’”

Indeed, earlier translations of the Bible and the Nicene Creed include “the quick,” and even some versions of the creed used to this day include the line “he shall come again with glory to judge both the quick and the dead.” There are also multiple Westerns with the title “The Quick and the Dead,” drawing from those Christian origins. 

Farm animals also used to be called “quickstock” before “livestock” took over. 

So how did “quick” evolve from “alive” to “fast”?

“The shift toward speed follows a simple logic,” Vignoles said. “Living things move, and dead things do not, so a word meaning alive naturally came to describe liveliness and motion. By the medieval period, quick was already being used for fast movement, and that became its dominant sense in everyday English.”

In many ways, it feels like a clean semantic chain from alive to animated to moving to fast. But what makes quick particularly interesting is how many traces of its original meaning are still hiding in plain sight. Take, for example, the words “quicksand” and “quicksilver” and the term “quickening” in pregnancy.

“Quicksand is sand that behaves as if it has a life of its own, shifting and pulling things under,” Vignoles said. “Quicksilver was the old name for mercury, called that because its constant, restless movement made it appear alive. Quickening in pregnancy refers to the first moment a woman feels the baby move, historically understood as the point at which the baby became alive. Each one is a small fossil of the word’s original meaning, preserved inside modern English.”

Those terms preserve the older sense of alive, rather than fast. Quicksand is basically “living sand” – which makes more sense than “fast sand,” given it’s actually a rather slow-moving phenomenon (unlike depictions in movies). And quicksilver is “living silver.” In fact, Pliny the Elder described the substance of mercury as “argentum vivum,” which literally means “living silver” or “quicksilver” in the earlier English translation.

“Cut to the quick” is another surviving phrase linked to that earlier meaning of quick. The phrase refers to the idea of piercing straight to the heart of something or causing someone hurt on a very deep level. In other words, to cut to the quick can mean to cut to the very core of what makes you a living being.

In the context of this phrase, quick can also refer to the sensitive, living flesh beneath your fingernails, which can hurt intensely if you cut your nails deep. In this sense, it might be that you’re cutting into tender skin that’s alive versus a fingernail, which is made up of dead cells.

For Vignoles, the story of “quick” illustrates something broader about how languages carry their histories.

“It shows that old meanings rarely disappear. They survive in fixed phrases long after the main sense of a word has moved on,” she said, pointing to Babbel’s research on the way American English has evolved in honor of the United States’ 250th anniversary this year.

The evolution also points to how deep some of these connections can run, she added. 

“The root behind quick is the same one that produced Latin words like vivid and revive, and it is also related to the root behind the Hindi word jeevan, meaning ‘life,’” Vignoles said. “Babbel’s research found Hindi has only entered the American dictionary in the past two decades, through words like yoga and karma, but the deeper connection between English and Hindi at the root level goes back much further than that.”

She believes the word quick is a clear case of a word maintaining its original and modern meaning side by side in everyday language. 

“The same root shows up even further afield,” Vignoles said. “Russian zhivoy, meaning alive or lively, comes from the same ancient source, and so does the Greek bios, the root behind words like biology and biography. It is a reminder that a single ancient idea, the idea of being alive, has quietly seeded vocabulary across English, Hindi, Russian and Greek alike, even though most speakers of those languages would never guess the words are related.”

Now perhaps next time you ask someone to be quick with something, you’ll remember that you are invoking a word whose original meaning was a reminder to all that we are alive.