Vedas language of work or name Vedic Sanskrit
The Vedas ( or , IAST: veda, Sanskrit: वेदः, lit. 'knowledge') are a large body of religious texts originating in ancient India. Composed in Vedic Sanskrit, the texts constitute the oldest layer of Sanskrit literature and the oldest scriptures of Hinduism.There are four Vedas: the Rigveda, the Yajurveda, the Samaveda and the Atharvaveda. Each Veda has four subdivisions – the Samhitas (mantras and benedictions), the Aranyakas (text on rituals, ceremonies, sacrifices and symbolic-sacrifices), the Brahmanas (commentaries on rituals, ceremonies and sacrifices), and the Upanishads (texts discussing meditation, philosophy and spiritual knowledge). Some scholars add a fifth category – the Upasanas (worship). The texts of the Upanishads discuss ideas akin to the heterodox sramana-traditions.Vedas are śruti ("what is heard"), distinguishing them from other religious texts, which are called smṛti ("what is remembered"). Hindus consider the Vedas to be apauruṣeya, which means "not of a man, superhuman" and "impersonal, authorless," revelations of sacred sounds and texts heard by ancient sages after intense meditation.The Vedas have been orally transmitted since the 2nd millennium BCE with the help of elaborate mnemonic techniques. The mantras, the oldest part of the Vedas, are recited in the modern age for their phonology rather than the semantics, and are considered to be "primordial rhythms of creation", preceding the forms to which they refer. By reciting them the cosmos is regenerated, "by enlivening and nourishing the forms of creation at their base."The various Indian philosophies and Hindu denominations have taken differing positions on the Vedas; schools of Indian philosophy that acknowledge the primal authority of the Vedas are classified as "orthodox" (āstika). Other śramaṇa traditions, such as Charvaka, Ajivika, Buddhism, and Jainism, which did not regard the Vedas as authorities, are referred to as "heterodox" or "non-orthodox" (nāstika) schools.Etymology and usage
The Sanskrit word véda "knowledge, wisdom"  is derived from the root vid- "to know". This is reconstructed as being derived from the Proto-Indo-European root *u̯eid-, meaning "see" or "know."The noun is from Proto-Indo-European *u̯eidos, cognate to Greek (ϝ)εἶδος "aspect", "form" . This is not to be confused with the homonymous 1st and 3rd person singular perfect tense véda, cognate to Greek (ϝ)οἶδα (w)oida "I know". Root cognates are Greek ἰδέα, English wit, etc., Latin videō "I see", German wissen "to know" etc.The Sanskrit term veda as a common noun means "knowledge". The term in some contexts, such as hymn 10.93.11 of the Rigveda, means "obtaining or finding wealth, property", while in some others it means "a bunch of grass together" as in a broom or for ritual fire.Vedas are called Maṛai or Vaymoli in parts of South India. Marai literally means "hidden, a secret, mystery". But the Tamil Naan Marai mentioned in Tholkappiam is not Sanskrit Vedas. In some parts of South India (e.g. the Iyengar communities), the word veda is used in the Tamil writings of the Alvar saints. Such writings include the Naalayira Divya Prabandham (aka Tiruvaymoli).Samaveda
The Samaveda Samhita consists of 1549 stanzas, taken almost entirely (except for 75 mantras) from the Rigveda. While its earliest parts are believed to date from as early as the Rigvedic period, the existing compilation dates from the post-Rigvedic Mantra period of Vedic Sanskrit, between c. 1200 and 1000 BCE or "slightly later," roughly contemporary with the Atharvaveda and the Yajurveda.The Samaveda samhita has two major parts. The first part includes four melody collections (gāna, गान) and the second part three verse “books” (ārcika, आर्चिक). A melody in the song books corresponds to a verse in the arcika books. Just as in the Rigveda, the early sections of Samaveda typically begin with hymns to Agni and Indra but shift to the abstract. Their meters shift also in a descending order. The songs in the later sections of the Samaveda have the least deviation from the hymns derived from the Rigveda.In the Samaveda, some of the Rigvedic verses are repeated. Including repetitions, there are a total of 1875 verses numbered in the Samaveda recension translated by Griffith. Two major recensions have survived, the Kauthuma/Ranayaniya and the Jaiminiya. Its purpose was liturgical, and they were the repertoire of the udgātṛ or "singer" priests.
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