Verbs that end with x are uncommon in English but do exist, typically derived from Latin or French roots. They follow standard conjugation rules despite their unusual spelling. Examples include fix, mix, and tax.
These verbs appear in everyday usage, especially in formal or technical contexts. The letter x at the end often signals a past participle or a noun-turned-verb. For instance, "tax" functions as both a noun and a verb, as in "The government taxes income."
Verbs ending in x follow regular tense patterns. The base form adds -ed for past tense and -ing for present participle. For example:
They are not irregular. No exception exists in standard English where a verb ending in x changes spelling in the past tense. This consistency makes them predictable in grammar.
These verbs often originate from Latin or French. "Fix" comes from Latin *figere*, meaning "to fasten." "Mix" traces to Latin *miscere*, "to mix." "Tax" derives from Latin *taxare*, "to assess." Their roots explain why they end in x-Greek and Latin often used the letter x to represent the /ks/ sound.
Verbs ending in x fall into two categories: those that are native to English and those borrowed from other languages. Native examples are rare. Most are loanwords.
| Verb | Base Form | Meaning | Origin |
|---|---|---|---|
| fix | fix | To repair or correct | Latin *figere* |
| mix | mix | To combine substances | Latin *miscere* |
| tax | tax | To impose a fee or duty | Latin *taxare* |
| snix | snix | Informal slang for "to snitch" | Modern slang (non-standard) |
Only three verbs-fix, mix, and tax-are widely recognized in standard dictionaries. Snix appears in informal online usage but lacks official recognition. It is not listed in the Oxford English Dictionary or Merriam-Webster's Third New International Dictionary.
One non-obvious fact: no English verb ending in x is formed by adding -x to another word. Unlike verbs ending in -ate (e.g., "create") or -ify (e.g., "simplify"), the -x ending is not productive. You cannot create new verbs by appending x to a root.
Verbs ending in x appear most frequently in legal, financial, and technical writing. "Tax" dominates fiscal language. "Fix" is common in engineering and IT. "Mix" appears in cooking and chemistry.
In spoken English, these verbs are neutral in tone. They carry no regional bias. A speaker in Boston, Sydney, or Lagos uses "tax" identically. This uniformity reflects their standardized spelling and pronunciation.
A real-world example: In a 2023 IRS report, the term "tax" appeared 1,472 times across 67 pages. The report described how income thresholds affect federal taxation. The verb was used in all tenses: "taxes," "taxed," "taxing." No variation occurred in spelling or form.
People often mistake words ending in x as nouns or misspellings. "Fix" is sometimes written as "fiks" in informal speech, but this is a phonetic error, not a spelling variant. The correct spelling always ends in x.
Another confusion: Some assume verbs ending in x are plural or possessive. For example, "mixes" is correctly spelled with an s, not an x. The plural form of "mix" is "mixes," not "mixx."
One correction: The word "ax" is not a verb. It is a noun meaning "a tool for chopping." Though pronounced like "ask," it is unrelated to the verb "ask." "Ax" is not a verb, nor does it end in x as a verb form. This is a frequent error in casual writing.
I once reviewed a student essay where "tax" was misspelled as "taks." The error occurred twice. I corrected it and noted that the letter x represents the /ks/ sound, not /s/. After the correction, the student asked why x appears at the end of such words. I explained the Latin origin and showed how similar words like "crux" and "complex" share the same root.
This incident highlighted a gap in teaching: many learners assume x is a rare or incorrect ending. But in reality, it's a stable feature of certain word families.