Prescribe or Proscribe: Which Is Correct?
Updated · Which One Is Correct editorial team
Quick answer: Prescribe or proscribe? Both are real English verbs, but they mean opposite things. Prescribe means to officially recommend or order a treatment. Proscribe means to forbid, outlaw, or condemn. Confusing them changes your message entirely.
The Short Answer
Prescribe is the word you want when ordering medication or setting a rule, while proscribe is used when banning something. They are not interchangeable synonyms.
Confusion stems from the similar prefixes. Pre- suggests coming before or for a purpose, while pro- suggests forth or against. Most people rarely use proscribe, leading to accidental swaps in daily writing.
Side-by-Side Comparison
| Form | Status | Use it when |
|---|---|---|
| Prescribe | Correct | You are authorizing a course of action |
| Proscribe | Correct | You are prohibiting or condemning an action |
| Prescribe | Verb | Medical or legal contexts are common |
| Proscribe | Verb | Formal or historical legal contexts are common |
Correct Example Sentences
- The doctor decided to prescribe a strong antibiotic for the infection.
- The new policy will proscribe smoking in all indoor office areas.
- Laws often prescribe strict penalties for serious financial crimes.
- The community leader sought to proscribe hate speech at public gatherings.
- She did not need a prescription because the remedy was over the counter.
- The constitution may proscribe certain types of government overreach.
- Teachers can prescribe extra reading assignments to help struggling students.
- Ethical guidelines proscribe accepting expensive gifts from clients.
- The judge had to prescribe the exact sentence based on the statute.
- The organization voted to proscribe membership for anyone who breaks the code.
Common Mistakes and Fixes
- The law procribes that you must wear a seatbelt.
- The law prescribes that you must wear a seatbelt.
- The doctor proscribed me a new inhaler for my asthma.
- The doctor prescribed me a new inhaler for my asthma.
- We should proscribe the use of reusable bags to help the planet.
- We should promote the use of reusable bags to help the planet.
- The school prescribed all forms of cheating during the exam.
- The school proscribed all forms of cheating during the exam.
- He tried to proscribe a method for solving the equation.
- He tried to prescribe a method for solving the equation.
- The treaty prescribes nuclear weapons testing in the region.
- The treaty proscribes nuclear weapons testing in the region.
A Quick Test You Can Use
Ask yourself if you are giving permission or taking it away. If you are allowing, recommending, or ordering a specific path forward, use prescribe. If you are banning, forbidding, or officially condemning an action, use proscribe. The meaning dictates the spelling.
Related Word Pairs
- Discreet vs Discrete
- Discreet means careful; discrete means separate or distinct.
- Affect vs Effect
- Affect is usually a verb; effect is usually a noun.
- Principal vs Principle
- Principal refers to a person or main part; principle refers to a rule.
- Loose vs Lose
- Loose means not tight; lose means to misplace or fail.
- Complement vs Compliment
- Complement completes something; compliment is an expression of praise.
More Example Sentences
- The architect chose to prescribe the use of sustainable materials for the new library.
- Many countries proscribe the trade of endangered species to protect biodiversity.
- She had to prescribe a special diet to help her patient recover from surgery.
- The company policy proscribes casual attire during formal client meetings.
- Teachers often prescribe extra homework to reinforce difficult math concepts.
- International law proscribes the use of chemical weapons in warfare.
- The coach decided to prescribe a rigorous training schedule for the upcoming season.
- Local ordinances proscribe loud noise after midnight in residential neighborhoods.
- He could not prescribe the medication without verifying the patient's insurance first.
- Ethical codes proscribe conflicts of interest among board members.
Quick Practice
The doctor decided to a new medication for my allergy symptoms.
prescribe
The organization will members who violate the safety protocols.
proscribe
You must your reading list before the semester begins.
prescribe
Most religious texts stealing and lying as moral wrongs.
proscribe
The vet had to a course of antibiotics for the infected wound.
prescribe
The new zoning laws building high-rises in this historic district.
proscribe
Frequently Asked Questions
Can prescribe and proscribe be used as nouns?
No, both words function primarily as verbs. You will see their noun forms as prescription and proscription, which carry similar meanings of ordering or forbidding respectively.
Is proscribe a common word in everyday speech?
Proscribe is quite formal and rare. Most native speakers use forbid, ban, or outlaw instead. Prescribe is very common, especially in medical and legal contexts.
What is the origin of these confusing words?
Both come from Latin. Prescribe comes from praescribere, meaning to write before. Proscribe comes from proscribere, meaning to write out or post publicly for banning.
Do dictionaries list them as synonyms?
No, reputable dictionaries list them as antonyms. Prescribe means to direct or authorize, while proscribe means to forbid or condemn. They have opposite meanings.
