Per Say or Per Se? Here’s the Correct Spelling and Meaning 

If you have ever paused mid-sentence, unsure whether to write per say or per se, you are not alone. This is one of the most common spelling errors in everyday English, appearing in emails, social media posts, academic papers, and even professional reports. The confusion is understandable, but only one spelling is correct.

Understanding the difference matters more than people realize. Whether you are writing a business email or a college essay, using the wrong form can quietly undermine your credibility. This article breaks down the correct spelling, the meaning, where it comes from, and how to use it confidently in any context.

What “Per Se” Really Means

Per se is a Latin phrase. It comes directly from Latin, where per means “by” or “through,” and se is a reflexive pronoun meaning “itself,” “himself,” or “herself.” Combined, per se translates literally to “by itself” or “in itself.”

In English, the phrase is used to indicate that something should be considered on its own terms, without reference to outside factors or circumstances. It draws attention to the intrinsic quality of something, separating it from the broader context.

Here is a clear way to think about it: when you say something is not a problem per se, you mean it is not a problem in and of itself — though other related factors might still be worth discussing.

The phrase belongs to a category of Latin terms that English absorbed over centuries, especially through legal and academic writing. It functions as an adverb or adverbial phrase, modifying verbs, adjectives, or entire ideas.

Why “Per Say” Is Incorrect

Per say does not exist in any dictionary — English or Latin. It carries no meaning and has no grammatical function. It is simply a misspelling of per se, shaped entirely by how the phrase sounds when spoken aloud.

Why the Mistake Happens

The pronunciation of per se is /pər ˈseɪ/ — which sounds identical to “per say.” Because the two versions are phonetically the same, many writers default to the spelling that looks more natural in English: per say. This is a classic case of a phonetic spelling error, sometimes called an “eggcorn” in linguistics.

The problem is particularly common among:

• Non-native English speakers who learned the phrase through speech, not reading
• Native speakers who rarely encounter the phrase in formal writing
• Writers who rely on autocorrect, which does not always flag per say as incorrect

The bottom line is simple: per say is always a mistake. There is no context, regional variation, or informal setting where it becomes acceptable.

Understanding Correct Usage

Using per se correctly requires understanding what it actually does in a sentence. It isolates the inherent nature of something from surrounding factors. It is most useful when you want to make a distinction — acknowledging one thing while drawing attention to another.

Examples

Incorrect	Correct
I don’t dislike the plan per say, but the timeline is off.	I don’t dislike the plan per se, but the timeline is off.
There’s no rule per say against wearing casual clothes.	There’s no rule per se against wearing casual clothes.
The product isn’t expensive per say, but the fees add up.	The product isn’t expensive per se, but the fees add up.

Key Points

• Per se is always two separate words — never perse as one word (which is actually a shade of dark blue)
• It is sometimes italicized in formal writing because it is a foreign phrase, though this is not required in everyday use
• A comma before or after per se depends on context and where it falls in the sentence

Grammar Rules and Style Tips

Per se functions as an adverbial phrase and can appear in several positions within a sentence. It most commonly follows the word or concept it modifies.

A few grammar rules worth knowing:

• No hyphen needed. Per se is never hyphenated.
• Comma usage. When per se appears mid-sentence as a parenthetical element, commas on both sides are appropriate: “The policy, per se, is not the issue.”
• Do not overuse it. Style guides recommend using per se only when it genuinely clarifies a distinction. Using it as filler weakens your writing.
• Formal writing. In academic or legal writing, it is sometimes italicized. In general professional writing, plain text is fine.

The Chicago Manual of Style and other major guides consistently uphold per se as the only correct form, noting that per say reflects a spelling error, not a stylistic choice.

Common Contexts Where “Per Se” Appears

Per se shows up across a wide range of fields and everyday situations. Knowing where it fits naturally makes it easier to use correctly.

Legal writing is probably the most prominent context. Phrases like “negligence per se” or “illegal per se” are standard in courtrooms and legal documents. “Negligence per se” means that an action is automatically considered negligent because it violates a law or regulation, without needing further proof of carelessness.

Academic writing uses it to separate variables or highlight intrinsic qualities. A researcher might write: “The compound is harmless per se, but its interaction with other elements can be dangerous.”

Business communication sees it in emails and reports when someone wants to soften a criticism: “The design isn’t the problem per se — the user experience still needs work.”

Everyday conversation also uses it, often to avoid making a sweeping generalization: “I don’t dislike mornings per se, I just prefer going to bed late.”

Historical and Linguistic Context

The phrase per se was first attested in English texts around the 1570s, though its Latin roots go back much further. Latin was the language of scholarship, law, medicine, and the church in medieval Europe, and many Latin terms were absorbed into English as the language developed.

Per se holds a small but interesting note in early English alphabet history. In the 15th and 16th centuries, letters like a and I were sometimes described as standing alone — written as “a per se” to mean “the letter a, by itself.” The modern word “ampersand” actually evolved from “and per se and” — a description of the & symbol standing alone meaning “and.”

English speakers adopted per se centuries ago, especially in legal, academic, and philosophical writing. Over time, it filtered into general usage. The misspelling per say appeared later, primarily because the spoken form offered no clue about the Latin spelling.

Sound Traps and Mispronunciations

The pronunciation of per se — /pər ˈseɪ/ — is identical to “per say.” This is the root of nearly all confusion around this phrase. Unlike some foreign borrowings in English that retain a clearly non-English sound, per se sounds completely natural in spoken English.

This is called a “sound trap”: a word or phrase whose pronunciation leads writers toward the wrong spelling. Other examples include:

• Moot point written as mute point
• For all intents and purposes written as for all intensive purposes
• Bated breath written as baited breath

In each case, the spoken version creates a plausible but incorrect spelling. The fix is not to change pronunciation but to build familiarity with the written form through reading and deliberate practice.

How to Use “Per Se” Effectively

Use it to Highlight Intrinsic Qualities

Per se works best when you want to evaluate something on its own merits, without outside influences. This is its core function.

• “The idea isn’t bad per se, but the timing is poor.”
• “Money is not the problem per se — it’s how it’s being spent.”

Use it to Clarify a Point

It can signal nuance, indicating that while something may appear one way in isolation, other factors change the picture.

• “The law per se does not prohibit this, but regulators may see it differently.”
• “She’s not unfriendly per se — she’s just very focused at work.”

Avoid using per se as a conversational filler or as a substitute for “so to speak.” That is one of the most common misuses and weakens the precision the phrase is meant to add.

Common Misuses and Examples

Workplace Email Example

Incorrect: “I don’t have a problem with the proposal per say, but the budget section needs more detail.”

Correct: “I don’t have a problem with the proposal per se, but the budget section needs more detail.”

Why it matters: In professional settings, small errors like this can affect how colleagues and supervisors perceive your attention to detail. It is a minor mistake with a noticeable impact.

Social Media Example

Incorrect: “It’s not that I hate the gym per say, I just never go.”

Correct: “It’s not that I hate the gym per se, I just never go.”

Why it matters: Even in informal contexts, writing per say can invite correction from readers and make your post look careless.

Expert Insights

Language experts and style guides are consistent on this topic. The Chicago Manual of Style treats per say as a spelling mistake and recommends maintaining per se in its correct Latin form to preserve precision. Merriam-Webster and Oxford dictionaries do not list per say as an entry — it simply does not exist as a word.

Linguists describe per say as a phonetic spelling error, not an acceptable informal variant. Unlike some words that shift spelling over time through widespread use (such as alright from all right), per say has not achieved any level of formal recognition.

Grammar tools like LanguageTool and style checkers flag per say as incorrect and suggest the replacement per se. This is one area where automated tools and human experts agree completely.

Pop Culture References

Per se appears across popular culture, often used to add nuance or sound precise. Writers from Shakespeare to Oscar Wilde used Latin phrases in their work, with per se appearing in philosophical and literary contexts.

In American culture, Per Se is also the name of Thomas Keller’s renowned Michelin-starred restaurant in New York City — a subtle nod to the phrase’s meaning of something standing apart on its own merits. The name reflects the restaurant’s philosophy of letting ingredients and technique speak for themselves.

In online discussions, Reddit threads and Twitter debates frequently surface where someone uses per say and others correct it. This kind of public visibility has actually increased awareness of the correct form in recent years.

Alternatives and Synonyms

If per se feels awkward or overly formal in a given sentence, several synonyms carry a similar meaning:

Synonym	Example
Inherently	“The method is not inherently flawed.”
Intrinsically	“The material is intrinsically safe.”
In itself	“The idea, in itself, is sound.”
By itself	“The phrase, by itself, adds clarity.”
Essentially	“The policy is essentially unchanged.”
As such	“The rule, as such, does not apply here.”

Each of these works in different registers. “In itself” and “by itself” are the most direct translations and work well in formal writing. “Inherently” and “intrinsically” work well in academic or analytical contexts.

Tips to Avoid Confusion

Mnemonic Device

Remember: “Se” not “say” — Se is Latin, say is English. Latin phrases keep their Latin spelling in English, no matter how they sound. If you know the phrase comes from Latin, you know the spelling stays as se, not say.

Another way: think of per se as a complete, fixed unit — two Latin words that belong together exactly as written.

Proofreading Strategies

• Read your writing aloud and then look at the written phrase carefully
• Use the “Find” function in your word processor to search for per say and correct it
• Add per say to your personal list of common errors to watch for
• When in doubt, replace per se entirely with “in itself” or “inherently” — both are clear and correct

Quick Editing Checklist

Before sending any formal document or email, run through this:

• [ ] Did I write per se or per say? (Only per se is correct)
• [ ] Is per se doing real work in the sentence, or is it filler?
• [ ] Could I replace it with “inherently” and still make sense?
• [ ] Is the phrase in the right position in the sentence?

Conclusion

The answer to “per say or per se?” is always per se. It is a Latin phrase meaning “by itself” or “in itself,” and its spelling does not change just because it sounds like “per say” when spoken. Per say is not a word, not an informal variant, and not acceptable in any form of writing, formal or casual.

Getting this right is a small thing, but it matters. In a world where professional emails, social media posts, and academic work are all judged on detail and clarity, writing per se correctly signals that you pay attention. Use it to highlight intrinsic qualities, clarify a point, or add nuance — and when in doubt, replace it with “inherently” or “in itself.” Either way, now you know exactly which one is correct.