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see grammargrammar,
description of the structure of a language, consisting of the sounds (see phonology); the meaningful combinations of these sounds into words or parts of words, called morphemes; and the arrangement of the morphemes into phrases and sentences, called syntax.
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the minimal meaningful part of an utterance and one of the basic units of a language system. The characteristics of morphemes are meaningfulness—morphemes convey lexical or grammatical meaning; repeatability—morphemes retain the same (or similar) meaning and the same (or similar) form when they appear in different contexts; and nonreducibility— morphemes cannot be further divided into parts having the same characteristics. The morpheme is also defined as the smallest meaningful part of a word and as a class of morphs possessing specific characteristics.

The detection of a morpheme begins with the division of utterances in a language into morphs; then, morphs similar in content and form and found in complementary or noncontrastive distribution (not causing differences of meaning) are combined into a single morpheme. For example, the Russian morpheme drug, “friend,” has the morphs drug~druzh~druz’ This level of analysis, which establishes the allomorphs of a single morpheme, is called identification. Identification is followed by the classification of the morpheme. According to their position in the language system, morphemes are divided into free morphemes capable of behaving as independent words, such as English day, German Tag, and Russian tikh; bound morphemes that occur only as part of a word, such as the plural formant -s in English days, or the adjectival ending -ii in Russian tikhii, “quiet“); and relatively bound morphemes that may occur in both free and bound form, such as Russian do, used as preposition and as prefix, in doletef do reki, “to fly up to the river.”

Morphemes are divided by function into auxiliary (affixal) and nonauxiliary (radical), of which the former are usually bound and the latter free. As a rule, the number of affixal morphemes is limited to a few dozen, while the number of radical morphemes is unlimited. Affixal morphemes are divided according to types of meaning conveyed, into derivational (word-forming), relational (word-altering, or inflectional), and relational-derivational (form-creating). The last two categories are often combined under the term “word-altering.”

Morphemes may convey meaning not only by their phonological presence in a given word but also by their absence (zero ending, zero allomorph). For example, the Russian word stol, “table,” is construed as nominative singular since it lacks the morphemic plural marker -y (Russian stoly, “tables“) as well as any relational morphemes indicating oblique case (the sign for zero ending is -#, as in stol[-#]). Most linguists regard the morpheme as a unit that correlates linguistic expression with linguistic content, that is, as a two-sided semiotic unit. Less often, the morpheme is regarded as the smallest unit of linguistic expression.


References in periodicals archive ?
For example, using "relevance to syntax" as a criterion for classifying different types of inflectional morpheme, Booij (1996) separates what he calls contextual from inherent inflection.
In the article, I claim that the middle marker in Otomi emerged from the reanalysis of an old inflectional morpheme characterizing a subclass of intransitive verbs depicting activities performed by humans.
Indeed, in L1 acquisition, inflectional paradigms are always acquired completely, inflectional errors of commission are uncommon, and inflectional morphemes are often used consistently.
If so, an explanation of the difficulties of language-impaired children with respect to inflectional morphology (or any other domain) in a particular language that does not take into account the exponence and syntactic properties of inflectional morphemes in that language is bound to fail.
di) PRESENT presentative conjugation (discontinuous inflection: inflectional morphemes .
Modern Castilian seems to be explicit enough in pointing to the participial or the adjectival status of the predicate: preparado is participle of PREPARAR in Todas las estudiantes han PREPARADO sus ejercicios 'All the (female) students have prepared their tasks', whereas the same form is adjective PREPARADO, which takes on respective inflectional morphemes to meet the requirements of concord: for instance, Todas las estudiantes estan PREPARADAS 'All the (female) students are prepared/ready'.
For example, Moerk (1980) has shown that the inflectional morphemes most often used by the parents of the Harvard children are the first to reach 90% of correct production in obligatory contexts.