The Uniformitarian Principle is a key hypothesis in the study of linguistics and language change today. Peter Trudgill calls the uniformitarian principle "one of the fundamental bases of modern historical linguistics," which he characterizes, other things being equal, as the principle "that knowledge of processes that operated in the past can be inferred by observing ongoing processes in the present." [1] It is the linguistic adaptation of a widespread principle in the sciences, there usually known as uniformitarianism.
In linguistics, Uriel Weinreich, William Labov and Marvin Herzog appear to have been the first to expressly elaborate, in the 1960s, on a hitherto tacit assumption of equivalent processes being at play in the present time as in the past. They did not do so without precedent, however, as historical and comparative linguistics, from the late 18th century on, seem to have adopted such process-oriented thinking. Hermann Paul, for instance, assumed what he the called "psychological" principles in the 1860s as underlying language change. [2] William Labov's "Principles of Language Change, Part 1: Internal Factors," from 1994, gives probably the most coherent account to date by expressly linking the Uniformitarian Principle to geographical uniformitarianism and expressing the parallels. [3] Around the same time William Dwight Whitney wrote of "So far back as we can trace the history of language, the forces which have been efficient in producing its changes ... have been the same". [4] Labov summarizes the state-of-the-art: "Today, it would seem that linguistics has accepted the uniformitarian principle and its consequences, as geology, biology, and other historical sciences have done." [5]
Uniformitarianism, also known as the Doctrine of Uniformity or the Uniformitarian Principle, is the assumption that the same natural laws and processes that operate in our present-day scientific observations have always operated in the universe in the past and apply everywhere in the universe. It refers to invariance in the metaphysical principles underpinning science, such as the constancy of cause and effect throughout space-time, but has also been used to describe spatiotemporal invariance of physical laws. Though an unprovable postulate that cannot be verified using the scientific method, some consider that uniformitarianism should be a required first principle in scientific research. Other scientists disagree and consider that nature is not absolutely uniform, even though it does exhibit certain regularities.
Sociolinguistics is the descriptive study of the effect of any or all aspects of society, including cultural norms, expectations, and context, on language and the ways it is used. It can overlap with the sociology of language, which focuses on the effect of language on society. Sociolinguistics overlaps considerably with pragmatics and is closely related to linguistic anthropology.
William Labov is an American linguist widely regarded as the founder of the discipline of variationist sociolinguistics. He has been described as "an enormously original and influential figure who has created much of the methodology" of sociolinguistics.
In the field of dialectology, a diasystem or polylectal grammar is a linguistic analysis set up to encode or represent a range of related varieties in a way that displays their structural differences.
Uriel Weinreich was a Jewish–American linguist.
A speech community is a group of people who share a set of linguistic norms and expectations regarding the use of language. It is a concept mostly associated with sociolinguistics and anthropological linguistics.
Language change is the process of alteration in the features of a single language, or of languages in general, across a period of time. It is studied in several subfields of linguistics: historical linguistics, sociolinguistics, and evolutionary linguistics. Traditional theories of historical linguistics identify three main types of change: systematic change in the pronunciation of phonemes, or sound change; borrowing, in which features of a language or dialect are introduced or altered as a result of influence from another language or dialect; and analogical change, in which the shape or grammatical behavior of a word is altered to more closely resemble that of another word.
In sociolinguistics, prestige is the level of regard normally accorded a specific language or dialect within a speech community, relative to other languages or dialects. Prestige varieties are language or dialect families which are generally considered by a society to be the most "correct" or otherwise superior. In many cases, they are the standard form of the language, though there are exceptions, particularly in situations of covert prestige. In addition to dialects and languages, prestige is also applied to smaller linguistic features, such as the pronunciation or usage of words or grammatical constructs, which may not be distinctive enough to constitute a separate dialect. The concept of prestige provides one explanation for the phenomenon of variation in form among speakers of a language or languages.
Lexical diffusion is the hypothesis that a sound change is an abrupt change that spreads gradually across the words in a language to which it is applicable. It contrasts with the Neogrammarian view that a sound change results from phonetically-conditioned articulatory drift acting uniformly on all applicable words, which implies that sound changes are regular, with exceptions attributed to analogy and dialect borrowing.
A diaphoneme is an abstract phonological unit that identifies a correspondence between related sounds of two or more varieties of a language or language cluster. For example, some English varieties contrast the vowel of late with that of wait or eight. Other English varieties contrast the vowel of late or wait with that of eight. This non-overlapping pair of phonemes from two different varieties can be reconciled by positing three different diaphonemes: A first diaphoneme for words like late, a second diaphoneme for words like wait, and a third diaphoneme for words like eight.
In linguistics, a koine or koiné language or dialect is a standard or common dialect that has arisen as a result of the contact, mixing, and often simplification of two or more mutually intelligible varieties of the same language.
Variation is a characteristic of language: there is more than one way of saying the same thing in a given language. Variation can exist in domains such as pronunciation, lexicon, grammar, and other features. Different communities or individuals speaking the same language may differ from each other in their choices of which of the available linguistic features to use, and how often, and the same speaker may make different choices on different occasions.
The apparent-time hypothesis is a methodological construct in sociolinguistics whereby language change is studied by comparing the speech of individuals of different ages. If language change is taking place, the apparent-time hypothesis assumes that older generations will represent an earlier form of the language and that younger generations will represent a later form. Thus, by comparing younger and older speakers, the direction of language change can be detected.
In linguistics, age-graded variation is differences in speech habits within a community that are associated with age. Age-grading occurs when individuals change their linguistic behavior throughout their lifetimes, but the community as a whole does not change.
In sociolinguistics, the curvilinear principle states that there is a tendency for linguistic change from below to originate from members of the central classes in a speech community's socioeconomic hierarchy, rather than from the outermost or exterior classes.
In the field of sociolinguistics, social network describes the structure of a particular speech community. Social networks are composed of a "web of ties" between individuals, and the structure of a network will vary depending on the types of connections it is composed of. Social network theory posits that social networks, and the interactions between members within the networks, are a driving force behind language change.
Real-time sociolinguistics is a sociolinguistic research method concerned with observing linguistic variation and change in progress via longitudinal studies. Real-time studies track linguistic variables over time by collecting data from a speech community at multiple points in a given period. As a result, it provides empirical evidence for either stability or linguistic change.
The Philadelphia study was a study designed to test the Curvilinear principle as referred to by William Labov, through careful gathering and analysis of research on language variants in five Philadelphia neighborhoods. His research goal was to "discover the social location of the innovators of linguistic change and therefore focuses on the embedding of individuals in their neighborhood".
The gender paradox is a sociolinguistic phenomenon first observed by William Labov, who noted, "Women conform more closely than men to sociolinguistic norms that are overtly prescribed, but conform less than men when they are not." Specifically, the "paradox" arises from sociolinguistic data showing that women are more likely to use prestige forms and avoid stigmatized variants than men for a majority of linguistic variables, but that they are also more likely to lead language change by using innovative forms of variables.
The economy principle in linguistics, also known as linguistic economy, is a functional explanation of linguistic form. It suggests that the organization of phonology, morphology, lexicon and syntax is fundamentally based on a compromise between simplicity and clarity, two desirable but to some extent incompatible qualities. The more distinctive elements that a language has, for example, phonemes or functional markers, the more it will promote hearer-easiness. This, however, occurs on the expense of the speaker, who must make a greater effort to convey a message. An economic solution yields good communicative value without excessive time and energy costs.