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|Native to||Bronze Age India, Iron Age India|
|Region||Northwestern Indian subcontinent|
|Era||Early Vedic period|
|ISO 639-3||vsn (proposed)|
Vedic Sanskrit is an Old Indo-Aryan language. It is the spoken ancestor of liturgical Sanskrit, and an early descendant of Proto-Indo-Iranian. It is closely related to Avestan, the oldest preserved Iranian language. Vedic Sanskrit is the oldest attested language of the Indo-Iranian branch of the Indo-European family.
Vedic Sanskrit is the language of the Vedas, texts compiled over the period of early-to-mid 2nd to mid 1st millennium BC. It was orally preserved as a part of the Śrauta tradition of Vedic chanting, predating the advent of alphabetic writing in India by several centuries. For lack of both epigraphic evidence and an unbroken manuscript tradition, Vedic Sanskrit can be considered a reconstructed language. Especially the oldest stage of the language, Rigvedic Sanskrit, the language of the hymns of the Rigveda, is preserved only in a redacted form several centuries younger than the texts' composition. Recovering its original form is a matter of linguistic reconstruction.
In spite of being comparatively close to the reconstructed form of Proto-Indo-Iranian, Vedic Sanskrit is already clearly marked as a language of the Indic group. Among the phonological changes from Proto-Indo-Iranian is the loss of the /z/ and /ž/ phonemes, and the introduction of a series of retroflex stops. For example, Proto-Indo-Iranian *nižda- "nest" gives Vedic nīḍa- "resting-place, seat, abode", involving both the loss of *ž (accompanied with a lengthening of the *i to ī) and the substitution of the retroflex ḍ for*d . On the side of vocabulary, Rigvedic Sanskrit shows a considerable number of loanwords taken from an indigenous Indian source. This substratum influence on early Vedic Sanskrit also extends to phonetic, morphological and syntactical features, and is variously traced to the Dravidian or Munda language families.
The separation of Indo-Aryans proper from the undifferentiated Proto-Indo-Iranian ancestor group is commonly dated, on linguistic grounds, to roughly 1800 BC. The composition of the oldest hymns of the Rigveda is dated to several centuries after this division, or to roughly 1500 BC. Both Asko Parpola (1988) and J.P. Mallory (1998) place the locus of the division of Indo-Aryan from Iranian in the Bronze Age BMAC culture. Parpola (1999) elaborates the model and has "Proto-Rigvedic" Indo-Aryans intrude the BMAC around 1700 BC. He assumes early Indo-Aryan presence in the Late Harappan horizon from about 1900 BC, and "Proto-Rigvedic" (Proto-Dardic) intrusion to the Punjab as corresponding to the Swat culture from about 1700 BC. According to this model, Rigvedic Sanskrit within the larger Indo-Aryan group is the direct ancestor of the Dardic languages. The hymns of the Rigveda are thus composed in a liturgical language which was based on the natural language spoken in Gandhara during the early phase of the Swat culture, at the end of the Indian Bronze Age. This liturgical language over the following centuries came to be separated from spoken vernaculars and came to be known as the "artificial" or "elaborated" (saṃskṛta) language, contrasted to the "natural" or "unrefined" prākṛta vernaculars by the end of the Vedic period.
Five chronologically distinct strata can be identified within the Vedic language (Witzel 1989).
- Rigvedic The Ṛigveda retains many common Indo-Iranian elements, both in language and in content, that are not present in any other Vedic texts. Its creation must have taken place over several centuries, and apart from the latest books (1 and 10), it must have been essentially complete by around the 12th century BC.
- Mantra language This period includes both the mantra and prose language of the Atharvaveda (Paippalada and Shaunakiya), the Rigveda Khilani, the Samaveda Samhita (containing some 75 mantras not in the Rigveda), and the mantras of the Yajurveda. These texts are largely derived from the Rigveda, but have undergone certain changes, both by linguistic change and by reinterpretation. Conspicuous changes include change of viśva "all" to sarva, and the spread of kuru- (for Rigvedic kṛno-) as the present tense form of the verb kar- "make, do". This period corresponds to the early Iron Age in north-western India (iron is first mentioned in the Atharvaveda), and to the kingdom of the Kurus, dating from about the twelfth century BC.
- Samhita prose (roughly 1100 BC to 800 BC). This period marks the beginning collection and codification of a Vedic canon. An important linguistic change is the complete loss of the injunctive and of the grammatical moods of the aorist. The commentary part of the Black Yajurveda (MS, KS) belongs to this period.
- Brahmana prose (roughly 900 BC to 600 BC) The Brahmanas proper of the four Vedas belong to this period, as well as the Aranyakas (Āraṇyakas) oldest of the Upanishads (Brihadaranyaka Upanishad, Chāndogya Upanishad, Jaiminiya Upanishad Brahmana).
- Sutra language This is the last stratum of vedic Sanskrit leading up to 500 BC, comprising the bulk of the Shrauta and Grhya Sutras, and some Upanishads (E.g. Katha Upanishad, Maitrayaniya Upanishad. Younger Upanishads are post-Vedic).
Around 500 BC, cultural, political and linguistic factors all contribute to the end of the Vedic period. The codification of Vedic ritual reached its peak, and counter movements such as the Vedanta and early Buddhism emerged, using the vernacular Pali, a Prakrit dialect, rather than Sanskrit for their texts. Darius I of Persia invaded the Indus valley and the political center of the Indo-Aryan kingdoms shifted eastward, to the Gangetic plain. Around this time (4th century BC), Panini fixes the grammar of Classical Sanskrit.
- This section treats the distinguishing features of Vedic Sanskrit — see Classical Sanskrit for a general account.
Sound changes between Proto-Indo-Iranian and Vedic Sanskrit include loss of the voiced sibilant z.
Vedic Sanskrit had a bilabial fricative [ɸ], called upadhmānīya, and a velar fricative [x], called jihvamuliya. These are both allophones of visarga: upadhmaniya occurs before p and ph, jihvamuliya before k and kh. Vedic also had a retroflex l, an intervocalic allophone of ḍ, represented in Devanagari with the separate symbol ळ and transliterated as ḷ or ḷh. In order to disambiguate vocalic l from retroflex l, ISO 15919 transliterates vocalic l with a ring below the letter, l̥. (Vocalic r is then also represented with a ring, r̥, for consistency and to disambiguate it additionally from the retroflex ṛ and ṛh of some modern Indian languages.)
Vedic Sanskrit had a pitch accent. Since a small number of words in the late pronunciation of Vedic carry the so-called "independent svarita" on a short vowel, one can argue that late Vedic was marginally a tonal language. Note however that in the metrically restored versions of the Rig Veda almost all of the syllables carrying an independent svarita must revert to a sequence of two syllables, the first of which carries an udātta and the second a (so called) dependent svarita. Early Vedic was thus definitely not a tonal language but a pitch accent language. See Vedic accent.
Pāṇini gives accent rules for the spoken language of his (post-Vedic) time, though there is no extant post-Vedic text with accents.
Principal differences from Classical Sanskrit
Vedic Sanskrit differs from Classical Sanskrit to an extent comparable to the difference between Homeric Greek and Classical Greek. Tiwari ( 2005) lists the following principal differences between the two:
- Vedic Sanskrit had a voiceless bilabial fricative (/ɸ/, called upadhmānīya) and a voiceless velar fricative (/x/, called jihvāmūlīya)—which used to occur when the breath visarga (अः) appeared before voiceless labial and velar consonants respectively. Both of them were lost in Classical Sanskrit to give way to the simple visarga.
- Vedic Sanskrit had a retroflex lateral approximant (/ɭ/) (ळ) as well as its aspirated counterpart /ɭʰ/ (ळ्ह्), which were lost in Classical Sanskrit, to be replaced with the corresponding plosives /ɖ/ (ड) and /ɖʱ/ (ढ). (Varies by region; Vedic pronunciations are still in common use in some regions, e.g. Southern India, including Maharashtra.)
- The pronunciations of syllabic /ɻ̩/ (ऋ), /l̩/ (लृ) and their long counterparts no longer retained their pure pronunciations, but had started to be pronounced as short and long /ɻi/ (रि) and /li/ (ल्रि).
- The vowels e (ए) and o (ओ) were actually realized in Vedic Sanskrit as diphthongs /ai/ and /au/, but they became pure monophthongs /eː/ and /oː/ in Classical Sanskrit.
- The vowels ai (ऐ) and au (औ) were actually realized in Vedic Sanskrit as hiatus /aːi/ (आइ) and /aːu/ (आउ), but they became diphthongs /ai/ (अइ) and /au/ (अउ) in Classical Sanskrit.
- The Prātishākhyas claim that the dental consonants were articulated from the root of the teeth (dantamūlīya), but they became pure dentals later. This included the /r/, which later became retroflex.
- Vedic Sanskrit had a pitch accent which could even change the meaning of the words, and was still in use in Panini's time, as we can infer by his use of devices to indicate its position. At some latter time, this was replaced by a stress accent limited to the second to fourth syllables from the end.
- Vedic Sanskrit often allowed two like vowels to come together without merger during Sandhi.
Vedic had a subjunctive absent in Panini's grammar and generally believed to have disappeared by then at least in common sentence constructions. All tenses could be conjugated in the subjunctive and optative moods, in contrast to Classical Sanskrit, with no subjunctive and only a present optative. (However, the old first-person subjunctive forms were used to complete the Classical Sanskrit imperative.) The three synthetic past tenses (imperfect, perfect and aorist) were still clearly distinguished semantically in (at least the earliest) Vedic, although not at all with the semantics that would be implied by their name. Rather, the imperfect was a narrative tense, similar to the Greek aorist; the perfect was often indistinguishable from the present tense, although possibly with a stative meaning; and the aorist had a meaning similar to the Greek perfect. A fifth mood, the injunctive, also existed.
- The subjunctive mood of Vedic Sanskrit was also lost in Classical Sanskrit. Also, there was no fixed rule about the use of various tenses (luṇ, laṇ and liṭ).
- There were more than twelve ways of forming infinitives in Vedic Sanskrit, of which Classical Sanskrit retained only one form.
- Nominal declinations and verbal conjugation also changed pronunciation, although the spelling was mostly retained in Classical Sanskrit. E.g., along with the Classical Sanskrit's declension of deva as devaḥ—devau—devāḥ, Vedic Sanskrit additionally allowed the forms devaḥ—devā—devāsaḥ. Similarly Vedic Sanskrit has declined forms such as asme, tve, yuṣme, tvā, etc. for the 1st and 2nd person pronouns, not found in Classical Sanskrit. The obvious reason is the attempt of Classical Sanskrit to regularize and standardize its grammar, which simultaneously led to a purge of Old Proto-Indo-European forms.
- Proto-Indo-European and its immediate daughters were essentially end-inflected languages in which what would later become bound prefixes were still independent morphemes. Such morphemes (especially for verbs) could come anywhere in the sentence, but in Classical Sanskrit, it became mandatory to attach them immediately before the verb; they, then, ceased being independent morphemes and became prefix-morphemes bound to the beginnings of verbs. There was a similar development from Homeric Greek to Classical Greek: see tmesis.
- Restoring historical language of the vedas from attested vedic
- Mallory, J.P. (1989). In Search of the Indo-Europeans: Language, Archaeology, and Myth. London: Thames & Hudson. p. 38f.
- e.g. EIEC, s.v. "Indo-Iranian languages", p. 306.
- Parpola, Asko (1999), "The formation of the Aryan branch of Indo-European", in Blench, Roger & Spriggs, Matthew, Archaeology and Language, vol. III: Artefacts, languages and texts, London and New York: Routledge.
- Ernst Wilhelm Oskar Windisch, Berthold Delbrück, Die altindische Wortfolge aus dem Catapathabrahmana
- A. A. Macdonell, Vedic Grammar (1910)
- A. A: Macdonnell, Vedic Grammar for Students
- Bruno Lindner, Altindische Nominalbildung: Nach den S̆amhitas dargestellt (1878) 
- Michael Witzel, Tracing the Vedic dialects in Dialectes dans les litteratures Indo-Aryennes ed. Caillat, Paris, 1989, 97–265.