219+Curtesy or Courtesy: Correct Spelling Guide

May 16, 2026
Written By William Zinsser

Learn English grammar simply and improve every day.

Have you ever typed “curtesy” and wondered if it was correct? Many people search for “curtesy or courtesy” because the two words look and sound similar.

Spell-check tools may even confuse users when typing fast. This spelling mix-up is common in emails, school work, social media posts, and professional writing.

|See also Leach or Leech

The good news is simple: only one spelling is correct in most situations. The word “courtesy” means polite behavior, respect, or a kind action. “Curtesy” is an old legal term that most people never use today. Because both words exist in English, many writers are unsure which one belongs in daily writing.

This guide explains the difference between “curtesy” and “courtesy” in clear and simple language. You will learn the correct spelling, the history of both words, British and American English usage, common mistakes, and real-life examples. By the end, you will know exactly which spelling to use in every situation.


The correct spelling for polite behavior is courtesy.

Correct Example

  • Thank you for your courtesy and support.

Incorrect Example

  • Thank you for your curtesy and support.

The word courtesy means kindness, respect, or good manners.

The word curtesy is a rare legal term from old English law. Most people never need to use it.

WordMeaningCommon Today?
CourtesyPoliteness, respect, kindnessYes
CurtesyOld legal termNo

The word courtesy comes from the Old French word courtoisie. It later entered Middle English. The word was linked to polite behavior shown in royal courts. Over time, it became the modern English word for kindness and respect.

The word curtesy has a very different history. It came from old legal language in England. It referred to a husband’s legal rights over his wife’s property after her death. Today, this meaning is outdated and rarely used.

Because the two words sound alike, many people accidentally spell “courtesy” as “curtesy.” Modern English keeps “courtesy” as the standard spelling for normal communication.


There is no major spelling difference between British English and American English for this word.

Both countries use courtesy as the correct modern spelling.

RegionCorrect SpellingExample
American EnglishCourtesyPlease accept this courtesy gift.
British EnglishCourtesyHe thanked her for her courtesy.
Canadian EnglishCourtesyCourtesy matters in business.
Australian EnglishCourtesyBasic courtesy is important.

“Curtesy” is not a British spelling of “courtesy.” It is a separate old legal word.


You should use courtesy in almost every situation.

Use “Courtesy” If You Write For:

  • American audiences
  • British audiences
  • Canadian audiences
  • Australian audiences
  • Global readers
  • Schools and universities
  • Business communication
  • Social media and blogs

Use “Curtesy” Only If:

  • You are discussing old legal history
  • You are writing about historical English law

For modern writing, “courtesy” is always the safe and professional choice.


Many writers make simple spelling mistakes with this keyword.

IncorrectCorrect
Curtesy callCourtesy call
Curtesy emailCourtesy email
Thank you for your curtesyThank you for your courtesy
Common curtesyCommon courtesy

Why the Mistake Happens

  • Both words sound similar
  • Fast typing causes spelling errors
  • Autocorrect may not catch it
  • “Curtesy” is still a real word in dictionaries

Easy Memory Trick

Think of the word court inside courtesy. Good manners often come from polite social behavior.


Here are simple examples of the correct usage.

In Emails

  • Thank you for your courtesy during our meeting.
  • We appreciate your courtesy and patience.

In News Writing

  • The company offered courtesy transportation to customers.
  • The mayor thanked the staff for their courtesy.

On Social Media

  • A little courtesy goes a long way.
  • Please show courtesy in the comments section.

In Formal Writing

  • Professional courtesy is important in business.
  • Courtesy and respect improve workplace culture.

Incorrect Everyday Usage

  • Thank you for your curtesy. ❌

Search data shows that “courtesy” is far more popular worldwide.

CountryPopular Spelling
United StatesCourtesy
United KingdomCourtesy
CanadaCourtesy
AustraliaCourtesy
IndiaCourtesy

People usually search this keyword because:

  • They want the correct spelling
  • They saw both words online
  • Spell-check created confusion
  • They need professional writing help

Online Usage Trends

  • “Courtesy” appears in books, websites, and business writing every day.
  • “Curtesy” mostly appears in legal history documents.

FeatureCourtesyCurtesy
Correct for politenessYesNo
Modern English useVery commonVery rare
Used in business writingYesNo
Used in legal historyNoYes
Accepted worldwideYesNo
Common search confusionYesYes

  1. What is the difference between courtesy and curtesy?
    Courtesy means politeness or respect, while curtesy is an old legal term rarely used today.
  2. Which is a courtesy?
    Courtesy is the correct modern word for kindness, polite behavior, or respectful actions.
  3. Is curtesy an outdated term?
    Yes, curtesy is an outdated legal word and is almost never used in everyday English.
  4. Is it courtesy or curtesy of someone?
    The correct phrase is “courtesy of someone,” which means provided or given by someone.
  5. What does curtesy mean?
    Curtesy was an old English legal term related to a husband’s rights to his wife’s property after her death.
  6. When should you curtsy or curtsey?
    You curtsy or curtsey as a polite bow mainly in formal traditions, royal events, or dance performances.

The difference between “curtesy” and “courtesy” is simple once you understand the meaning of each word. In modern English, courtesy is the correct spelling for kindness, respect, and polite behavior.

It is the word used in schools, businesses, news articles, emails, and daily conversations across the world.

The word curtesy is a rare legal term from old English law. Most people will never need to use it. That is why using “curtesy” in normal writing often looks like a spelling mistake.

If you want safe, professional, and clear communication, always choose courtesy. This spelling works in both British and American English and is accepted globally. A simple way to remember it is to connect “courtesy” with polite social behavior and respect.

When in doubt, use “courtesy.” It is the correct modern spelling for almost every situation.

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