Words Ending in -ment: Noun Formation Patterns

Introduction to the -ment Suffix

The suffix -ment is one of the most common noun-forming endings in English. It attaches primarily to verbs to create nouns that denote an action, process, result, or state. "Achieve" becomes "achievement," "govern" becomes "government," "agree" becomes "agreement."

You encounter -ment words constantly: management, development, environment, equipment, requirement, department, treatment, statement, movement, investment. These words are staples of business, academic, legal, and everyday language. Understanding how -ment works strengthens both your spelling and your ability to decode unfamiliar vocabulary.

Meaning and Origin

The -ment suffix comes from Latin -mentum, which was used to form nouns from verbs. It entered English through Old French, where many Latin -mentum words had already become -ment words. This French-Latin origin explains why -ment is particularly common in more formal, Latinate vocabulary.

The suffix carries several related meanings:

• The action or process of: development (the process of developing), management (the act of managing), assessment (the process of assessing).
• The result of: achievement (the result of achieving), agreement (the result of agreeing), statement (the result of stating).
• The state or condition of: amazement (the state of being amazed), contentment (the state of being content), excitement (the state of being excited).
• The means or instrument of: equipment (the means of equipping), instrument (a means of performing), ornament (a means of decorating).

Learning these meaning categories helps you use -ment words precisely. For a broader view of how suffixes work, see our guide to word roots, prefixes, and suffixes.

Spelling Rules for Adding -ment

General Rule: Add -ment Without Changes

For most verbs, simply add -ment: achieve → achievement, agree → agreement, amaze → amazement, amuse → amusement, announce → announcement, arrange → arrangement, develop → development, embarrass → embarrassment, employ → employment, enjoy → enjoyment, govern → government, invest → investment, manage → management, move → movement, pay → payment, require → requirement, retire → retirement, state → statement, treat → treatment.

Note that the final -e of the base verb is usually kept: amaze → amazement, manage → management, arrange → arrangement, achieve → achievement.

Exception: Verbs Ending in -dge

When the verb ends in -dge, the -e is dropped: judge → judgment (preferred in American English; British English often keeps "judgement"), acknowledge → acknowledgment (American) / acknowledgement (British).

Exception: Verbs Ending in -y

Unlike many suffixes, -ment usually does NOT change a final -y to -i: employ → employment, enjoy → enjoyment, deploy → deployment, betray → betrayal (note: not -ment). However, some -y verbs do change: merry → merriment.

Verbs Ending in -e: Keep or Drop?

The general rule is to keep the -e: advertise → advertisement, achieve → achievement, excite → excitement, refine → refinement. But "argue → argument" drops the -e—one of the most notable exceptions and a commonly misspelled word.

Turning Verbs into -ment Nouns

The verb-to-noun transformation with -ment is one of the most productive patterns in English. Here are extensive examples organized by the meaning relationship between verb and noun:

Action or Process

Assess → assessment, assign → assignment, develop → development, employ → employment, engage → engagement, establish → establishment, govern → government, invest → investment, manage → management, measure → measurement, punish → punishment, recruit → recruitment, replace → replacement.

Result or Product

Achieve → achievement, agree → agreement, announce → announcement, arrange → arrangement, assign → assignment, commit → commitment, embed → embedment, entitle → entitlement, improve → improvement, refine → refinement, settle → settlement, state → statement.

State or Condition

Amaze → amazement, amuse → amusement, astonish → astonishment, bewilder → bewilderment, content → contentment, detach → detachment, disappoint → disappointment, embarrass → embarrassment, enchant → enchantment, excite → excitement, fulfill → fulfillment, resent → resentment.

Common -ment Words by Category

Business and Work

Achievement, advertisement, agreement, appointment, assessment, assignment, commitment, department, development, employment, endorsement, engagement, environment, equipment, establishment, fulfillment, government, improvement, increment, investment, judgment, management, measurement, procurement, recruitment, requirement, retirement, settlement, statement.

Emotions and States

Amazement, amusement, astonishment, bewilderment, contentment, disappointment, embarrassment, enchantment, enjoyment, excitement, fulfillment, merriment, resentment, sentiment.

Science and Technology

Compartment, development, element, environment, equipment, experiment, filament, fragment, implement, instrument, measurement, pigment, segment, supplement, treatment.

Law and Government

Amendment, arraignment, assessment, commandment, commitment, compartment, department, document, endowment, enactment, enforcement, entitlement, government, imprisonment, indictment, judgment, parliament, punishment, settlement, testament.

-ment vs. -tion: Overlapping Patterns

Both -ment and -tion create nouns from verbs, and sometimes the choice between them is unclear. Some verbs take -ment, some take -tion, and a few take both (with different shades of meaning).

• Commit: commitment (-ment) and commission (-sion)—different meanings from the same root.
• Excite: excitement (-ment) and excitation (-tion)—the -ment form is more common in general usage; the -tion form appears in scientific contexts.
• Inform: information (-tion) only—no "informment."
• Replace: replacement (-ment) only—no "replacation."

There is no reliable rule for predicting which suffix a given verb will take. The best approach is to learn the established forms through reading and dictionary consultation.

Tricky Spellings

• Argument: No -e- between "argu" and "ment." Not "arguement."
• Judgment: American English drops the -e (judgment). British English often keeps it (judgement). Both are correct in their respective dialects.
• Government: Often mispronounced and misspelled as "goverment." Remember the -n- from "govern."
• Environment: Sometimes misspelled as "enviroment." Remember the -n- from "environ."
• Acknowledgment/Acknowledgement: American English drops the -e; British English keeps it.
• Fulfillment/Fulfilment: American English uses double-L; British English uses single-L.

Using -ment Words in Writing

As with other nominalizations, -ment words can make writing more abstract and wordy when overused. Compare:

• Wordy: "The development of the assessment framework led to the improvement of the management process."
• Clearer: "Developing the assessment framework improved how we manage the process."

The second version uses verbs instead of -ment nouns, creating more dynamic and readable prose. As discussed in our clear writing guide, balancing nouns with active verbs strengthens your writing.

That said, -ment nouns are indispensable when you need to refer to a concept as a thing: "The government announced new environmental requirements." Here, the nouns "government," "requirements," and the adjective "environmental" all serve necessary functions that verbs cannot easily replace.

Related Suffixes

Several other suffixes create nouns from verbs, and understanding them alongside -ment gives you a complete picture:

• -tion / -sion: The most common noun-forming suffix. See our -tion guide.
• -ness: Creates nouns from adjectives: happiness, darkness, kindness.
• -ance / -ence: Creates nouns from verbs or adjectives: performance, reference, dependence, tolerance.
• -al: Creates nouns from verbs: arrival, approval, removal, denial, refusal.

Practice Exercises

1. Form the -ment noun: achieve (achievement), amaze (amazement), argue (argument), commit (commitment), develop (development), employ (employment), govern (government), judge (judgment), manage (management), require (requirement).
2. Identify the verb: advertisement (advertise), bewilderment (bewilder), enchantment (enchant), fulfillment (fulfill), resentment (resent).
3. Choose -ment or -tion: inform → information. replace → replacement. celebrate → celebration. invest → investment. create → creation. assess → assessment.

Conclusion

The -ment suffix is a versatile and essential tool in English word formation. From everyday words like "government" and "management" to more specialized terms like "procurement" and "arraignment," -ment words appear across every domain of English. By understanding the spelling rules, recognizing the verb-to-noun relationship, and using -ment nouns judiciously in your writing, you gain both better spelling skills and a more nuanced command of the English language.