Words can sometimes acquire new conversion ( or zero derivation ).
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This is known as conversion, or zero derivation.
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The OP should look at productivity ( linguistics ) and zero derivation as well as Why English Rules.
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A verb " to long-finger something " is not something I've seen before, but zero derivation is a productive process in English.
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Deverbal nouns are verbs ( or verb phrases ) that have been zero derivation ( that is, verbs that are used syntactically as nouns without an added nominalizer ).
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From a morphological point of view, some compound verbs are difficult to analyze because several derivations are plausible . " Blacklist ", for instance, might be analyzed as an adjective + verb compound, or as an adjective + noun compound that becomes a verb through zero derivation.
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In certain circumstances, even words with primarily grammatical functions can be used as verbs or nouns, as in, " We must look to the " hows " and not just the " whys " . " The process whereby a word comes to be used as a different part of speech is called conversion or zero derivation.