In linguistics, an affix is a morpheme that is attached to a word stem to form a new word or word form. The main two categories are derivational and inflectional affixes. Derivational affixes, such as un-, -ation, anti-, pre- etc., introduce a semantic change to the word they are attached to. Inflectional affixes introduce a syntactic change, such as singular into plural, or present simple tense into present continuous or past tense by adding -ing, -ed to an English word. All of them are bound morphemes by definition; prefixes and suffixes may be separable affixes.
A lexicon is the vocabulary of a language or branch of knowledge. In linguistics, a lexicon is a language's inventory of lexemes. The word lexicon derives from Greek word λεξικόν, neuter of λεξικός meaning 'of or for words'.
A morpheme is any of the smallest meaningful constituents within a linguistic expression and particularly within a word. Many words are themselves standalone morphemes, while other words contain multiple morphemes; in linguistic terminology, this is the distinction, respectively, between free and bound morphemes. The field of linguistic study dedicated to morphemes is called morphology.
In linguistics, morphology is the study of words, including the principles by which they are formed, and how they relate to one another within a language. Most approaches to morphology investigate the structure of words in terms of morphemes, which are the smallest units in a language with some independent meaning. Morphemes include roots that can exist as words by themselves, but also categories such as affixes that can only appear as part of a larger word. For example, in English the root catch and the suffix -ing are both morphemes; catch may appear as its own word, or it may be combined with -ing to form the new word catching. Morphology also analyzes how words behave as parts of speech, and how they may be inflected to express grammatical categories including number, tense, and aspect. Concepts such as productivity are concerned with how speakers create words in specific contexts, which evolves over the history of a language.
An analytic language is a type of natural language in which a series of root/stem words is accompanied by prepositions, postpositions, particles and modifiers, using affixes very rarely. This is opposed to synthetic languages, which synthesize many concepts into a single word, using affixes regularly. Syntactic roles are assigned to words primarily by word order. For example, by changing the individual words in the Latin phrase fēl-is pisc-em cēpit "the cat caught the fish" to fēl-em pisc-is cēpit "the fish caught the cat", the fish becomes the subject, while the cat becomes the object. This transformation is not possible in an analytic language without altering the word order. Typically, analytic languages have a low morpheme-per-word ratio, especially with respect to inflectional morphemes. No natural language, however, is purely analytic or purely synthetic.
Morphological derivation, in linguistics, is the process of forming a new word from an existing word, often by adding a prefix or suffix, such as un- or -ness. For example, unhappy and happiness derive from the root word happy.
In linguistic morphology, an uninflected word is a word that has no morphological markers (inflection) such as affixes, ablaut, consonant gradation, etc., indicating declension or conjugation. If a word has an uninflected form, this is usually the form used as the lemma for the word.
International scientific vocabulary (ISV) comprises scientific and specialized words whose language of origin may or may not be certain, but which are in current use in several modern languages.
A root is the core of a word that is irreducible into more meaningful elements. In morphology, a root is a morphologically simple unit which can be left bare or to which a prefix or a suffix can attach. The root word is the primary lexical unit of a word, and of a word family, which carries aspects of semantic content and cannot be reduced into smaller constituents. Content words in nearly all languages contain, and may consist only of, root morphemes. However, sometimes the term "root" is also used to describe the word without its inflectional endings, but with its lexical endings in place. For example, chatters has the inflectional root or lemma chatter, but the lexical root chat. Inflectional roots are often called stems. A root, or a root morpheme, in the stricter sense, may be thought of as a monomorphemic stem.
In linguistics, a bound morpheme is a morpheme that can appear only as part of a larger expression, while a free morpheme is one that can stand alone. A bound morpheme is a type of bound form, and a free morpheme is a type of free form.
The Greek language has contributed to the English lexicon in five main ways:
A hybrid word or hybridism is a word that etymologically derives from at least two languages. Such words are a type of macaronic language.
A word is a basic element of language that carries meaning, can be used on its own, and is uninterruptible. Despite the fact that language speakers often have an intuitive grasp of what a word is, there is no consensus among linguists on its definition and numerous attempts to find specific criteria of the concept remain controversial. Different standards have been proposed, depending on the theoretical background and descriptive context; these do not converge on a single definition. Some specific definitions of the term "word" are employed to convey its different meanings at different levels of description, for example based on phonological, grammatical or orthographic basis. Others suggest that the concept is simply a convention used in everyday situations.
The Tonkawa language was spoken in Oklahoma, Texas, and New Mexico by the Tonkawa people. A language isolate, with no known related languages, Tonkawa has not had L1 speakers since the mid 20th centiury. Most Tonkawa people now only speak English, but revitalization is underway.
Neoclassical compounds are compound words composed from combining forms derived from classical languages roots. Neo-Latin comprises many such words and is a substantial component of the technical and scientific lexicon of English and other languages, via international scientific vocabulary (ISV). For example, Greek bio- combines with -graphy to form biography.
In linguistics, apophony is an alternation of vowel (quality) within a word that indicates grammatical information.
Medical terminology is a language used to precisely describe the human body including all its components, processes, conditions affecting it, and procedures performed upon it. Medical terminology is used in the field of medicine.
English prefixes are affixes that are added before either simple roots or complex bases consisting of (a) a root and other affixes, (b) multiple roots, or (c) multiple roots and other affixes. Examples of these follow:
In linguistic morphology, inflection is a process of word formation in which a word is modified to express different grammatical categories such as tense, case, voice, aspect, person, number, gender, mood, animacy, and definiteness. The inflection of verbs is called conjugation, while the inflection of nouns, adjectives, adverbs, etc. can be called declension.
An agglutinative language is a type of synthetic language with morphology that primarily uses agglutination. In an agglutinative language, words contain multiple morphemes concatenated together, but in such a manner that individual word stems and affixes can be isolated and identified as to indicate a particular inflection or derivation, although this is not a rule: for example, Finnish is a typical agglutinative language, but morphemes are subject to consonant alternations called consonant gradation.