Glottalic theoryThe glottalic theory is that Proto-Indo-European had ejective or otherwise non-pulmonic stops, , instead of the plain voiced ones, as hypothesized by the usual Proto-Indo-European phonological reconstructions. A forerunner of the theory was proposed by the Danish linguist Holger Pedersen in 1951, but he did not involve glottalized sounds.
Phrygian languageThe Phrygian language (ˈfrɪdʒiən) was the Indo-European language of the Phrygians, spoken in Anatolia (modern Turkey), during classical antiquity (c. 8th century BC to 5th century AD). Phrygian ethno-linguistic homogeneity is debatable. Ancient Greek authors used "Phrygian" as an umbrella term to describe a vast ethno-cultural complex located mainly in the central areas of Anatolia rather than a name of a single "tribe" or "people". Plato observed that some Phrygian words resembled Greek ones.
Grimm's lawGrimm's law (also known as the First Germanic Sound Shift) is a set of sound laws describing the Proto-Indo-European (PIE) stop consonants as they developed in Proto-Germanic in the 1st millennium BC. First discovered by Rasmus Rask but systematically put forward by Jacob Grimm, it establishes a set of regular correspondences between early Germanic stops and fricatives and stop consonants of certain other centum Indo-European languages. Grimm's law was the first discovered systematic sound change, creating historical phonology as a separate historical linguistics discipline.
Dacian languageDacian 'deish@n is an extinct language, generally believed to be a member of the Indo-European family, that was spoken in the Carpathian region in antiquity. In the 1st century, it was probably the predominant language of the ancient regions of Dacia and Moesia and possibly of some surrounding regions. The language was extinct by the 4th century AD. While there is general agreement among scholars that Dacian was an Indo-European language, there are divergent opinions about its place within the IE family: Dacian was a dialect of the extinct Thracian language, or vice versa, e.
IsoglossAn isogloss, also called a heterogloss (see Etymology below), is the geographic boundary of a certain linguistic feature, such as the pronunciation of a vowel, the meaning of a word, or the use of some morphological or syntactic feature. Major dialects are typically demarcated by bundles of isoglosses, such as the Benrath line that distinguishes High German from the other West Germanic languages and the La Spezia–Rimini Line that divides the Northern Italian languages and Romance languages west of Italy from Central Italian dialects and Romance languages east of Italy.
Chain shiftIn historical linguistics, a chain shift is a set of sound changes in which the change in pronunciation of one speech sound (typically, a phoneme) is linked to, and presumably causes, a change in pronunciation of other sounds as well. The sounds involved in a chain shift can be ordered into a "chain" in such a way that after the change is complete, each phoneme ends up sounding like what the phoneme before it in the chain sounded like before the change.
Daughter languageIn historical linguistics, a daughter language, also known as descendant language, is a language descended from another language, its mother language, through a process of genetic descent. If more than one language has developed from the same proto-language, or 'mother language', those languages are said to be sister languages, members of the same language family. These concepts are linked to the tree model of language evolution, in which the relationships between languages are compared with those between members of a family tree.
Gothic languageGothic is an extinct East Germanic language that was spoken by the Goths. It is known primarily from the Codex Argenteus, a 6th-century copy of a 4th-century Bible translation, and is the only East Germanic language with a sizeable text corpus. All others, including Burgundian and Vandalic, are known, if at all, only from proper names that survived in historical accounts, and from loanwords in other languages such as Portuguese, Spanish, Catalan, Occitan and French. As a Germanic language, Gothic is a part of the Indo-European language family.
Proto-languageIn the tree model of historical linguistics, a proto-language is a postulated ancestral language from which a number of attested languages are believed to have descended by evolution, forming a language family. Proto-languages are usually unattested, or partially attested at best. They are reconstructed by way of the comparative method. In the family tree metaphor, a proto-language can be called a mother language. Occasionally, the German term Ursprache (from Ur- "primordial, original", and Sprache "language", ˈuːɐ̯ʃpʁaːxə) is used instead.
Albanian languageAlbanian (endonym: shqipja ʃcipja or gjuha shqipe ˈɟuha ˈʃcipe) is an Indo-European language and an independent branch of that language family. It is the descendant of a Paleo-Balkan language. Albanian is the official language of Albania and Kosovo, and a co-official language in North Macedonia and Montenegro, as well as a recognized minority language of Italy, Croatia, Romania and Serbia. It is also spoken in Greece and by the Albanian diaspora, which is generally concentrated in the Americas, Europe and Oceania.
