---
title: to make sure
canonical_url: https://ensurance.app/guide/ensure-means-make-sure
markdown_url: https://ensurance.app/guide/ensure-means-make-sure.md
subtitle: "ensure is make sure in one word. it once let you ensure a person, a cargo, or an outcome. english kept only one"
category: philosophy
---

# to make sure

*ensure is make sure in one word. it once let you ensure a person, a cargo, or an outcome. english kept only one*

**Ensure** means to make certain that something happens. The word is built to say so: *en-*, "make," plus *sure*. To ensure is to make sure. The everyday phrase and the formal verb are the same idea, one in two words and one in one. The verb came into English from the Anglo-Norman *enseurer* and is first recorded around 1385, in Chaucer.

Before the verb existed, the things people would one day want to ensure were already doing their work. The forest held the slope. The marsh sat in front of the town. The ship was at sea. The verb was never about them. It was about people, and the moment someone takes on the job of making a thing sure. [Ensurance](/manual/ensurance?from=guide), in our use, is that job paid for: funding a [living system](/manual/natural-assets?from=guide) so it keeps working. The forest does not need the word to keep holding the slope.

This is the fourth post in a short series on the word. The others follow the root, the three spellings, and the noun as a brand. This one is about the verb: the member of the family that stayed in everyday use after its noun went obsolete.

## what ensure means today

In current standard English, *ensure* takes an outcome as its object. You ensure that something happens, or you ensure a result.

| pattern | example | what it does |
|---|---|---|
| ensure + *that* clause | *Ensure that the culvert is cleared before the first storm.* | makes an outcome certain |
| ensure + noun | *The easement ensures public access to the river.* | secures a condition or a result |
| ensure + noun + *for* someone | *The water fund ensures supply for the town.* | secures a result on someone's behalf |

In all three, the thing being made sure is an outcome. In standard usage you do not ensure your neighbor; you assure them. You do not ensure a house against fire; you insure it. American English also accepts *insure* where British English would write *ensure*. If you came here to settle a sentence, that is the answer, and the full side-by-side is in [ensure vs insure vs assure](/guide/ensure-vs-insure-vs-assure?from=guide).

It was not always this tidy. For centuries the verb could take a person, a cargo, or an outcome. Only one of those stuck as its own.

## a verb of doing from the start

The Anglo-Norman verb *enseurer*, first recorded in 1271–72, is *en-* "make" plus *seur* "sure." It turns a state into an act. *Seur* is being sure. *Enseurer* is making someone, or something, sure. What the medieval verb could do, and the Latin root behind it, is traced in [free from care](/guide/free-from-care-where-the-word-insurance-comes-from?from=guide). What matters here is what English did with it.

| when | what was ensured | sense | where it is recorded |
|---|---|---|---|
| 1271–72 (first recorded) | a province, a peace, a promise (uses c.1307–1396) | make safe; guarantee; pledge | Anglo-Norman Dictionary, *enseurer* |
| c.1385 | — | first English use of the verb | Oxford English Dictionary (Chaucer) |
| 1485 | *thee*, a person | pledge to someone | Malory, *Le Morte Darthur* |
| written 1620s–30s, printed 1664 | *his adventures*, goods sent abroad | cover against loss in trade | Thomas Mun |
| 18th century on | that something happens | make certain | dominant from the 18th century (Wiktionary) |

## three things you could once ensure

### a person: the pledge

In a text dated 1485, Malory has: "I shall ensure thee never [to] war against thy lady." The object is *thee*. To ensure someone was to give them your word, to bind yourself so that a thing would hold. Middle English had a close cousin, *seuren*, which meant to promise, to guarantee, or to pledge one's troth.

The pledge ran through the whole family. The Oxford English Dictionary's earliest citation of the noun, *ensuraunce*, in 1469, is a betrothal. And *sure* itself carried the same weight: Webster's dictionary of 1913 still records *to make sure* in the sense "to betroth." The phrase we now use for checking that the stove is off once had a recorded sense of promising to marry.

That use of *ensure* is gone. The old "pledge to someone" sense is marked obsolete. Today, when the thing being made sure is a person's confidence, English reaches for *assure*.

### a cargo: the merchant's cover

Thomas Mun, whose *England's Treasure by Forraign Trade* was written in the 1620s or 1630s and printed in 1664, told a merchant to "ensure his adventures from one Countrey to another." The adventures are the goods sent abroad. To ensure them was to arrange cover against their loss, what we now call insuring them: a payment after the ship goes down. That is the job [insurance](/guide/ensurance-vs-insurance?from=guide) still does.

That sense went to the other spelling. As the *i* spelling took over the commercial word, from the 1650s on and then on the fire offices' policies, cover belonged to *insure*. How that happened is told in [ensure vs insure vs assure](/guide/ensure-vs-insure-vs-assure?from=guide).

### an outcome: make certain

The third object is the one that stayed. To ensure a thing is to make certain it happens or holds. It is the sense English settled on from the eighteenth century.

:::johnson
**ensure is make sure, in one word.** — The verb once pledged people and covered cargoes. What it kept is the plainest job of the three: making an outcome certain.

[what do you want to ensure? →](/ensure?from=guide)
:::

## a verb without its noun

Usually a verb and its noun travel together: *insure* and *insurance*, *assure* and *assurance*. *Ensure* is the odd one. Its noun, *ensurance*, fell out of use after about 1755 and is marked obsolete. The verb stayed in daily use.

So a reader who meets *ensurance* today may take it for a misspelling at first. The grammar is there to find. *Ensure* is ordinary English, and *-ance* turns a verb into a noun: the act of ensuring.

Wiktionary calls *ensure* and *insure* doublets. They separated by convention, not by logic. Nothing in the root says the *i* should take the money and the *e* the outcome. It happened that way, and it left the *e* with the verb that names what you are trying to make true.

We picked the noun back up. *Ensurance* is [older than the industry](/guide/the-word-is-older-than-the-industry?from=guide) that took the other spelling, and once the noun is back, the rest of the family comes with it:

| form | in [ensurance](/manual/ensurance?from=guide) |
|---|---|
| ensure | to fund a place's present condition and record that protection against it |
| ensured | the state of a place whose working condition is funded |
| ensurer | someone who holds a share in that protection |
| unensured → ensured → entrust | the path a place moves along: at risk, then funded, then [protected for good](/guide/permanent-protection-has-to-survive-us?from=guide) |

*Insure*, *insured*, *insurer*, *insurance*. Swap the vowel and the grammar comes with it. The meaning moves from after the loss to before it.

## $ENSURE: the verb as a currency

The protocol's own coin is named for the verb. **[$ENSURE](/ensure?from=guide)** is the currency of ensurance: the coin an [agent](/manual/agents?from=guide) holds to speak and to run programs, the coin [proceeds](/manual/proceeds?from=guide) settle through, and the coin every [ensurance coin](/general?from=guide) pairs with. It is not a claim on any land, and it is not debt, a share, or a dividend.

The name does what the verb does. It points at an outcome, not a payout. A coin called *insure* would name the check after the loss. A coin called *ensure* names the condition still holding: the creek still running, the slope still in place. That is what the money exists to fund.

## what do you want to ensure?

Because *ensure* takes an outcome, it always carries a question: ensure what? The verb cannot be finished without naming the thing you want to be true.

Our use answers that question with a living condition. The creek still running in August. The slope still holding after the storm. The marsh still in front of the town. You ensure a place when you fund that present condition and record the protection against it. Name the living thing and the instrument follows: an [agent](/manual/agents?from=guide), an account the place holds in its own name; a [certificate](/specific?from=guide), a share of that one named place; a [coin](/general?from=guide) whose trading funds a theme. The question is the start of every account, it is the first thing on the [$ENSURE page](/ensure?from=guide), and it has [its own series](/guide/what-do-you-want-to-ensure?from=guide).

One caution, and an honest one. The verb's history does not mean it "always meant prevention." Its old senses are a pledge, a merchant's cover, and making certain. Funding a living system before a loss is our modern use. What the history gives us is a plain verb, make certain, which is the older ground that use stands on.

## frequently asked questions

### what does ensure mean?

*Ensure* means to make certain that something happens or that a condition holds. It is formed from *en-*, "make," and *sure*, so it means, literally, to make sure. In current English it takes an outcome as its object: you ensure that the road stays open, or you ensure public access to a river.

### where does the word ensure come from?

From Anglo-Norman *enseurer* (first recorded 1271–72), *en-* "make" plus *seur* "sure," which goes back to Latin *securus*, "free from care." Its first English use is around 1385, in Chaucer. Its noun, *ensurance*, is recorded in English from 1469 and became obsolete after the mid-1700s; the verb stayed in use.

### is ensure the same word as insure?

Historically, yes. Wiktionary calls them doublets, and the noun *insurance* began as a spelling variant of *ensurance*. English separated them by convention from the 1700s on: *ensure* for making certain, *insure* for cover against loss. American English still accepts *insure* in the sense of *ensure*.

### what is $ENSURE?

*$ENSURE* is the protocol currency of ensurance, named for the verb. An agent's account holds it to speak and to run programs, proceeds settle through it, and every ensurance coin pairs with it. It is not a claim on land, and it is not debt, a share, or a dividend. The [$ENSURE page](/ensure?from=guide) has what it does and where to get it.

### can you ensure a person?

Not in the old sense. In older English you could: Malory's "I shall ensure thee" (1485) means "I pledge to you." That sense is obsolete. Today you assure a person, insure a thing against loss, and ensure an outcome.

## read next

For the history of all three spellings, including the Office of Assurances and the Ensurance office: [ensure vs insure vs assure](/guide/ensure-vs-insure-vs-assure?from=guide). For the question the verb always asks, start with [what do you want to ensure?](/guide/what-do-you-want-to-ensure?from=guide). For what the noun pays for, and how that differs from a policy: [ensurance vs insurance](/guide/ensurance-vs-insurance?from=guide). For the mechanism, plainly: [what is ensurance?](/guide/what-is-ensurance?from=guide). For the coin named after the verb: [$ENSURE](/ensure?from=guide).

## sources

[Anglo-Norman Dictionary — enseurer](https://www.anglo-norman.net/entry/enseurer) — 1271–72; make safe, pledge, guarantee in law

[Oxford English Dictionary — ensure, v.](https://www.oed.com/dictionary/ensure_v) — earliest c.1385, Chaucer

[Oxford English Dictionary — ensurance, n.](https://www.oed.com/dictionary/ensurance_n) — obsolete; 1469–1755; first citation a betrothal

[Wiktionary — ensure](https://en.wiktionary.org/wiki/ensure) — Malory 1485 quotation; doublet of *insure*; the old "pledge" sense obsolete; the modern sense from the 18th century

[Middle English Dictionary — seuren](https://quod.lib.umich.edu/m/middle-english-dictionary/dictionary/MED39678) — promise, guarantee, pledge one's troth

[Webster's Revised Unabridged (1913) — sure](https://cide.en-academic.com/172352/Sure) — "to make sure: to betroth"

[Thomas Mun, England's Treasure by Forraign Trade (printed 1664)](https://socserv.socsci.mcmaster.ca/~econ/ugcm/3ll3/mun/treasure.txt) — "ensure his adventures from one Countrey to another"

## the series

Read first: [the word is older than the industry](/guide/the-word-is-older-than-the-industry?from=guide) — what the word means today and what the dictionaries say.

- [free from care: where the word insurance comes from](/guide/free-from-care-where-the-word-insurance-comes-from?from=guide)
- [ensure vs insure vs assure](/guide/ensure-vs-insure-vs-assure?from=guide)
- [can anyone own the word ensurance?](/guide/can-anyone-own-the-word-ensurance?from=guide)
- [to make sure](/guide/ensure-means-make-sure?from=guide)