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In linguistics, a word stem is a part of a word responsible for its lexical meaning. Typically, a stem remains unmodified during inflection with few exceptions due to apophony (for example in Polish, miast-o ("city") and w mieść-e ("in the city"); in English, sing, sang, and sung, where it can be modified according to morphological rules or peculiarities, such as sandhi).
In linguistic morphology and information retrieval, stemming is the process of reducing inflected (or sometimes derived) words to their word stem, base or root form—generally a written word form. The stem need not be identical to the morphological root of the word; it is usually sufficient that related words map to the same stem, even if this ...
The stem is the part of the word that never changes even when morphologically inflected; a lemma is the least marked form of the word. In linguistic analysis, the stem is defined more generally as a form without any of its possible inflectional morphemes (but including derivational morphemes and may contain multiple roots). [ 3 ]
Word formation includes a process in which one combines two complete words, but inflection allows the combination of a suffix with a verb to change the latter's form to that of the subject of the sentence. For example: in the present indefinite, 'go' is used with subject I/we/you/they and plural nouns, but third-person singular pronouns (he/she ...
For example, the word dermatology comes from the root dermato plus logy. [3] Sometimes, an excrescence , the addition of a consonant, must be added to avoid poor construction of words. There are additional uses for the suffix such as to describe a subject rather than the study of it (e.g. technology ).
Inflection is the process of adding inflectional morphemes that modify a verb's tense, mood, aspect, voice, person, or number or a noun's case, gender, or number, rarely affecting the word's meaning or class. Examples of applying inflectional morphemes to words are adding -s to the root dog to form dogs and adding -ed to wait to form waited.
In linguistics and grammar, a sentence is a linguistic expression, such as the English example "The quick brown fox jumps over the lazy dog." In traditional grammar , it is typically defined as a string of words that expresses a complete thought, or as a unit consisting of a subject and predicate .
In morphology, a root is a morphologically simple unit which can be left bare or to which a prefix or a suffix can attach. [2] [3] The root word is the primary lexical unit of a word, and of a word family (this root is then called the base word), which carries aspects of semantic content and cannot be reduced into smaller constituents.