Curtesy or Courtesy: Which Spelling Is Correct?

If you’ve ever typed “curtesy” and had spellcheck flag it, you’re not imagining things. The two words look almost identical, but only one of them is the everyday word for polite behavior. Here’s the short answer, plus what “curtesy” actually means and when (rarely) you’d use it.

Quick Answer: Courtesy Is the Word You Want

“Courtesy” is the correct spelling for polite, respectful behavior, such as holding a door open or saying “thank you.” “Curtesy” is not a misspelling exactly, but it’s a rare legal term referring to a husband’s historical right to a life interest in his deceased wife’s property. Unless you’re writing about old property law, you want courtesy.

What Does “Courtesy” Mean?

Courtesy is a noun meaning polite, respectful, or considerate behavior toward others. It also refers to a favor or polite gesture, as in “professional courtesy.”

You’ll see it in phrases like:

“Please extend her the same courtesy.”
“As a courtesy, we’ve included free shipping.”
“He answered with courtesy, even under pressure.”

This is the word almost everyone means when they’re trying to spell “curtesy” or “courtesy.”

What Does “Curtesy” Mean? (A Real, But Rare, Legal Term)

Curtesy is a genuine legal term, not just a typo. In common law, curtesy referred to a widower’s right to a life estate in real property that his deceased wife owned during their marriage, provided the couple had a child born alive during that marriage. Once the wife died, the husband could use the property for the rest of his own life, though he generally couldn’t sell it outright.

This right originated in English common law and was carried into early American property law. It has since been largely abolished or replaced by gender-neutral spousal inheritance rules in most US states, but you’ll still encounter the term in older deeds, title documents, wills, and law school property courses.

So if you’re reading legal history, estate law, or an old real estate title, “curtesy” might be exactly the right word. In every other context, it’s almost certainly a spelling slip for “courtesy.”

Curtesy vs Courtesy: Key Differences

Term	Correct Spelling For	Meaning	Typical Use
Courtesy	Everyday writing and speech	Polite, respectful behavior or a favor	“Thank you for your courtesy.”
Curtesy	Legal and historical writing only	A husband’s historical life estate in his late wife’s land	“The estate was held by curtesy.”

If you’re not writing about property law, courtesy is your answer nearly 100% of the time.

Where Does “Courtesy” Come From?

Courtesy traces back to Old French curteisie (also spelled corteisie), which derives from curteis, meaning “courtly” or having the manners suited to a royal court. That word, in turn, comes from cort, meaning “court,” rooted in the Latin cohors (an enclosed yard or company).

The idea behind the word is old and consistent: courteous behavior was originally the refined, polished manner expected of people at a royal court. Over centuries, the meaning broadened to describe polite behavior in general, not just conduct fit for nobility.

Curtesy, the legal term, developed separately within English common law and is generally traced to the same root idea of a “courtly” or customary right, though its specific legal sense narrowed over time to spousal property rights.

How to Pronounce Courtesy and Curtesy

Both words are pronounced almost identically in American English:

Courtesy: KUR-tuh-see
Curtesy: KUR-tuh-see

This shared pronunciation is a big reason the spellings get confused. Since your ear can’t tell you which one to write, you have to rely on context and spelling memory instead.

Grammar of “Courtesy”: Part of Speech, Plural, and Related Forms

Courtesy is primarily a noun. Here’s how it behaves grammatically:

Singular: courtesy (“Show some courtesy.”)
Plural: courtesies (“Exchange pleasant courtesies before the meeting.”)
Adjective form: courteous (“She gave a courteous reply.”)
Adverb form: courteously (“He declined courteously.”)

You’ll also see “courtesy” used as a modifier before another noun, meaning something is provided free or as a favor, as in a “courtesy call” or “courtesy vehicle.” This usage is common in American English, especially in customer service and hospitality contexts.

Curtesy is also a noun, but it has no adjective or adverb forms in common use, since it’s a narrow legal term rather than a general descriptive word.

How to Use “Courtesy” Correctly in a Sentence

Use courtesy whenever you mean politeness, respect, or a free favor. A few reliable patterns:

“Out of courtesy, I let her go first.”
“The hotel offers a courtesy shuttle to the airport.”
“He treated everyone with the same courtesy.”

Use curtesy only in a legal or historical context involving property inherited through a husband’s rights over his late wife’s estate.

“Under common law, the widower claimed the land by curtesy.”
“Curtesy has been abolished in most US states.”

Real-Life Examples of “Courtesy” in Context

Everyday conversation: “Thanks for the courtesy call, I really appreciate the heads up.”

Workplace email: “As a courtesy, please give at least 48 hours’ notice before canceling a meeting.”

Academic writing: “The study extends the same methodological courtesy to both control and experimental groups by disclosing all limitations.”

Business writing: “We’re offering a courtesy discount to long-term clients this quarter.”

Casual texting: “Lol he didn’t even have the courtesy to text back.”

Each sentence works because “courtesy” fits naturally into ordinary description of politeness or a free gesture. None of these would make sense with “curtesy,” since that word only applies to a specific legal property right.

Common Mistakes to Avoid

Incorrect: “Please show some curtesy to your coworkers.”
Correct: “Please show some courtesy to your coworkers.”
This is the single most common mix-up. The writer means politeness, so courtesy is correct.

Incorrect: “I received a courtesy in my late wife’s estate.”
Correct: “I received a curtesy interest in my late wife’s estate.”
Here, the sentence is describing the legal property right, so curtesy is the accurate term, though this scenario is rare outside legal writing.

Incorrect: “Thank you for your curtesy service.”
Correct: “Thank you for your courtesy service.”
“Courtesy service” (a free service offered as a favor) always uses the everyday spelling.

Is “Curtsey” Also Related? Don’t Confuse These Three Words

There’s a third word in this family that adds to the confusion: curtsy (also spelled curtsey), which is a small bow performed by bending the knees, traditionally by women as a sign of respect. It’s related in spirit to “courtesy,” since both involve showing respect, but it’s a completely different word grammatically and functionally, and it’s typically used as a verb or noun describing the physical gesture itself.

“She gave a graceful curtsy to the queen.”
“He showed courtesy, not a curtsy, by simply nodding.”

So you actually have three related but distinct words: courtesy (politeness, the common word), curtsy/curtsey (the physical gesture of respect), and curtesy (the rare legal property term). Only the first two show up in everyday writing.

Quick Tips to Remember the Correct Spelling

If you mean politeness or a free favor, always write courtesy, with an “o.”
Picture the word “court,” since courtesy originally described court manners; that “our” spelling pattern matches “courtesy.”
Reserve curtesy exclusively for legal or historical writing about a husband’s property rights.
If you’re not a lawyer, historian, or law student, you almost never need to type “curtesy.”

FAQ’s

Is “curtesy” a real word?

Yes. It’s a legitimate but narrow legal term describing a husband’s historical right to a life estate in his deceased wife’s property. It is not simply a misspelling, but it’s rarely the word people mean to use.

Is “curtesy” ever correct in everyday writing?

Almost never. Unless you’re specifically discussing historical or legal property rights, “courtesy” is the word you want.

What is the plural of courtesy?

The plural is courtesies, as in “She extended several courtesies to the visiting delegation.”

How do you use “courtesy” in a sentence?

Use it to describe polite behavior or a free gesture: “As a courtesy, the airline upgraded her seat.”

What’s the difference between curtsy and courtesy?

Curtsy describes the physical gesture of bending the knees as a sign of respect. Courtesy describes general politeness or a favor. They’re related in meaning but spelled and used differently.

Conclusion

When in doubt, write courtesy. It’s the word for politeness, respect, and free favors that you’ll use in nearly every piece of writing you produce. Curtesy, the legal term for a husband’s historical property right, only belongs in specialized legal or historical contexts. Remember the “our” in courtesy and “court,” and you’ll never mix them up again.