Knowra Indo-European sound laws Indo-European sound laws Indo-European sound laws are regular patterns of sound change that explain systematic correspondences among Indo-European languages and help reconstruct their common ancestor.
Comparative method : A method for reconstructing ancestral languages by comparing systematic correspondences among related languages. It uses sound laws to infer unattested forms shared by Indo-European languages.
William Jones : An English philologist and judge whose 1786 lecture proposed a historical relationship among Sanskrit, Greek, Latin, and other languages. His comparison helped launch the search for systematic Indo-European correspondences.
Proto-language : A reconstructed or documented ancestral language from which a group of related languages developed. Indo-European sound laws describe changes from a shared ancestral system.
Proto-Indo-European language : The reconstructed ancestor of the Indo-European language family, spoken before its branches diversified. Applying sound laws allows linguists to infer its sounds and word forms.
Phonetic change : A historical alteration in how speech sounds are articulated or perceived. Sound laws describe systematic outcomes of phonetic change across a language or branch.
Proto-Indo-European phonology : The reconstructed sound system of Proto-Indo-European, the ancestor of the Indo-European language family. Sound laws specify how its reconstructed sounds developed in daughter languages.
Rasmus Rask : A Danish linguist whose early nineteenth-century comparisons identified regular consonant correspondences among Germanic and other languages. His work anticipated the systematic consonant correspondences later formulated as Grimm's law.
Phoneme : A language-specific sound category that distinguishes words or grammatical forms. Sound laws track changes in phoneme systems rather than every detail of pronunciation.
Indo-European languages : A large family of languages including English, Persian, Hindi, Greek, and Spanish, descended from a common ancestor. The laws organize correspondences across this family and its branches.
Lexical diffusion : A model in which a sound change spreads gradually through a language's vocabulary, affecting words at different times. It contrasts with the classical account of sound laws as applying uniformly to eligible sounds.
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