A prefix is an affix which is placed before the stem of a word

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intro- vs. intra-

I recently found out that “extrovert” is a misspelling and that it’s actually written extravert. That makes sense, because other words use the same prefix, e.g. extraordinary, extradite, etc., but ...
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What does the prefix iso- mean in “isolate”? [on hold]

My question is referring to the prefix iso- and its meaning in the word isolate. My question is, if the prefix means equal, how does that make sense in the word isolate?
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What are antonym-like prefixes to the Greek “crypto”?

What is a prefix that is similar to "public", or "accessible", or "ubiquitous" such that it is harmonious with the spirit of currency needing to be of public domain, widely adopted, accessible, etc. ...
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“Inter-”, “multi-”, “cross-”, “trans-” in relation to disciplines

In academia the words inter-discipline, multi-discipline, trans-discipline, or cross-discipline are used to describe a type of combination between different disciplines or the uniqueness of a field. ...
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What comes in between predecessor and successor?

I'd like a good word for "current item in a succession of items". Let's say I am looking ahead, towards my successor. Back behind me, I can also see my predecessor. What am I? I'd hate to use the ...
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Why “unequal” but “inequality”?

The opposite of "equal" is "unequal", yet there is no word "unequality". Why do we use "inequality" instead?
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To outstay vs. overstay one's welcome

I came across the expression "outstayed my welcome" in the following excerpt of a novel I glance around and see that the café has filled up with people ordering lunch and that a couple is queuing ...
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Is “to” a prefix in English?

I was thinking about the words "today" and "tonight" and trying to think of what "to" means in these words. A cursory Google search turns up no results for "to" in any prefix lists.
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Best Practices for “Incorrect” Prefixes with Nuanced Meaning?

While writing, I encountered the following example. Simplified: It requires organization, and the problem is that a human's mind is intrinsically unorganized. The word unorganized is not a ...
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adding a prefix “re” to a word, with or without a hyphen?

In science we often invent words, but that doesn't mean we know how to spell them. Most of the time words are invented by adding prefixes. In that case should there be a hyphen or not? Specifically, I ...
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99 views

“Unauthentic” vs. “inauthentic” [closed]

Is there really no difference between inauthentic and unauthentic? If there is, which is more correct?
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Are products of wordsmithing proper english?

Several languages in which English has its roots have easily definable rules. For example, sticking "A" in from of an adjective can mean the opposite of that adjective (Asymmetrical, symmetrical), ...
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Are there many words that come with “a” as the prefix to mean “no, non” like “asymptomatic” and “apolitical”?

I didn’t know the word, “asymptomatic” to my shame, until I heard the following narration in AP Radio news aired on October 27 through AFN network: “Dr. Anthony Fauci with the NIH says CDC ...
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Are there other words which share the prefix “ig” to mean opposite, such as ignoble? [closed]

I'm wondering what other words share this prefix. Ignore (ignorance) comes to mind, though not strictly opposite (as "nore" is not a word. Nor is "norance"). Though the implication of "lacking ...
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What's the difference between unapproachable and inapproachable? [closed]

Could anyone explain why does it have two versions, because as far as I know, there are some rules of formation of antonyms. Isn't there should be only one proper prefix? Or both are possible? Thank ...
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What is the difference between a “prefix” and a “combining form”?

According to ODO, mini- is classified as a combining form. How exactly is this different from a prefix (or an affix, in general)? Can combining forms also be prefixes?
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Is it correct to use un-tinted or non-tinted in this use?

Related forms nontinted, adjective overtint, verb overtint, noun retint, verb (used with object) untinted, adjective Source: http://dictionary.reference.com/browse/untinted?s=t One ...
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Why is it “behead” and not “dehead”?

The be- prefix in behead doesn't seem to match similar words like become, besmirch, or befuddle. Of course, the same prefix could serve different roles depending on the word. What role is be- serving ...
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How does the “be-” prefix change the words to which it is applied? How did it come about?

What does the be- prefix change when applied to adjectives and verbs? There are many such words that seemed to be coined of this process, for example: behold, beget, befallen, beridden, ...
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Hyphenation of SI prefixes

I constantly see variations in the hyphenization of words containing SI prefixes. Nano-, micro-, milli-, etc. But when is it proper to ditch the hyphen, and when should it be included? For example, ...
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1answer
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When do I use non-, ir-/i-, dis-, a-, or un-?

Between using the prefixes non-, ir-, i-, and dis-, a-, or un-, meaning "not (root word) to do something", when is the best time to use each?
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Is there a prefix for “infinite”?

I was looking for a prefix I could prepend to a word to mean an infinite amount of the thing the word describes. I eventually found someone with the same question, and since there were no answers, I ...
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Etymology for “Mc‑” and “O’‑” prefix in surnames

There is clearly a prefix in names like McDonald, McChrystal, O’Brian, O’Neal. What does this Mc- and O- prefix signify? It looks like Donald, Chrystal, Brian, Neal are perfectly fine names on their ...
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Is there a fraction prefix for “(one-)third”?

I am a mathematician, working with things called 1⁄k-regular polytopes, dubbed thus by Conway. For the case of k = 2, as in ½-regular, it is naturally pronounced and written half-regular. However, I ...
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Order of prefixes when more than one is present

In Words having two prefixes incorporated the person asking the question is curious about the name for words with more than one prefix. I am interested in knowing the rules dictating their order. Why ...
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confusion about the 'ch' sound [duplicate]

i am confused about using the "ch" as there are three sound starting with "ch" as-/k/sound, and like these. is there some important rules to find out word formation?.someone please help me.
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Why do we say INcomplete but UNcompleted?

I'm a native speaker and it's just occurred to me that this is a strange irregularity: "The work is incomplete." < Fine "The work is uncompleted." < Less common but still sounds ...
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What do you call a tristate when there are only two states?

In programming the word "tristate" is used quite often to indicate an object with three possible states. A checkbox is a good example, it can be checked, unchecked or it can have no value yet. I now ...
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Is there any dictionary that decomposes an English word into prefix, root, and suffix?

Is there any dictionary that shows the decomposition of each word into these three parts, if application at all? For instance, "incapable" is divided into prefix "in", root "cap", and suffix "able". ...
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Terminology for a word containing a prefix/suffix or neither

Does terminology exist for discriminating between words which do/don't contain a prefix/suffix? How could I describe this difference in the synonyms 'discontinue' and 'stop'? Here, 'dis' is a prefix ...
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Are prefixes, as bound morphemes, always separable from their root words?

The root words in the examples below look fine even without a prefix: un + bearable ir + regular dis + able mis + fortune ... but not in these: pro + gress pro + mote Possibly, I ...
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“Unconscious” versus “nonconscious” in everyday dialogue

These words have subtle distinctions in related research fields, but even there are often considered interchangeable or just an matter of tradition/trendiness in a particular field. Since I am a bit ...
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Difference between the terms 'famous' & 'infamous'; 'valuable' & 'invaluable'

Question in Short: Why is it that the terms valuable and invaluable mean almost the same thing while the terms famous and infamous are almost semantically opposite in meaning? That is, one is used to ...
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Why can “trans” be replaced with an x?

I can't think of an example, so I may be wrong about this, but I think I've seen people replace the prefix "trans" as in transport with an x. "Cross" makes sense, as in "railroad crossing", and I ...
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Any word followed by “proof” means that something is protected against that word

I was wondering if you combine any word and add "proof" at the and, does that automatically means that it is protected against the first word? For example: Bulletproof - means something that can't ...
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What is the combining form of 'Christian?'

I recently heard the term 'Judeo-Christian' which caused a thought to strike me. I don't know how to switch the order of the classical compound (word). What is the combining form of 'Christian?' ...
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Curious about “en-” and “-en” in the same word…

There’s a motorcycle part called the “enrichener.” To my ears, it sounds like the “en-” prefix and “-en” suffix (in the enrichen part of enrichener) are redundant. Of course, there is also ...
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Opposite prefix to 'de'

Given a word, say deregulate, is there a prefix to denote the opposite, rather than simply saying regulate? It seems fairly illogical to have one but I was wondering if something existed.
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Should I say “declutter” or “unclutter”?

Which verb is more appropriate (and older) for clearing out my desk: declutter or unclutter and why? I should declutter my desk I should unclutter my desk Dictionary.com defines ...
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What is the story behind “a-” prefix / suffix?

For example, If this van's a-rockin', don't come a-knockin' Here We Come A-caroling (song title) Come on-a My House (song title) I have a few related questions: What is the "a-" or "-a" called? ...
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Why do we have the prefix “be” in “befriend”? What's the rule? [duplicate]

What is the verb form of the noun friend? I know it is to befriend, but I am confused as to how to teach this to my daughter. When is the prefix be used to make verbs? Is "befriend" an exception?
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What we've gelost — why doesn't English use the prefix “ge-”?

The Germanic languages that I'm familiar with all use a prefix similar to ge- on past participles: German: Ich habe mir den Fuß gebrochen. Dutch: Ik heb mijn voet gebroken. But English ...
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Is “omni” a prefix or a root word? [closed]

I always thought it was a prefix, but then doing a google search confused me. I need to explain why a word like "omnipotent" is often mispronounced. If "omni" is a root word, it would be easy to ...
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Is “dispreferred” a mainstream word in English?

I just recently came across the word dispreferred in a linguistic document. I have never heard the word used before, rather I generally hear something like "preferred something else" in everyday ...
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Proper term for knowing four or more languages?

If bilingual means you know two languages, and trilingual means you know three, what would be the proper term for knowing four, five or even six languages?
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Do “asymmetric” and “dissymmetric” have different meaning?

I get that usually a- (or un-) and di- prefixes mean different things, e.g. uninterested and disinterested. However, both asymmetric and dissymmetric refer to the lack of symmetry (which the NOAD ...
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Is a stem word required with a prefix and suffix combination?

Suppose the following lexeme: mononess Consisting of the prefix "mono-" (meaning "one") and suffix "-ness" (meaning "the quality of"), but no stem/root word. Could this lexeme be a valid word ...
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“The service is temporarily unavailable” vs. “…not available”

Is there a difference? Both versions are common. If there is a difference, which do I use when, and why?
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in-able ? un-able?

Suffix -able adds meaning "being able" to a word. I know that. Prefix in- and un- mean "not" or some negative meaning. I know that. However, when it comes to mixing of these, I am confused. ...