EtymologyEtymology (ˌɛtɪˈmɒlədʒi ) is the scientific study of the origin and evolution of a word's semantic meaning across time, including its constituent morphemes and phonemes. It is a subfield of historical linguistics, philology and semiotics, and draws upon comparative semantics, morphology, pragmatics, and phonetics in order to construct a comprehensive and chronological catalogue of all meanings that a morpheme, phoneme, word, or sign has carried across time.
AṣṭādhyāyīThe (Devanagari अष्टाध्यायी) is a grammar that describes a form of an early Indo-Aryan language: Sanskrit. Authored by Sanskrit philologist and scholar Pāṇini and dated to around 500 BCE, it describes the language as current in his time, specifically the dialect and register of an élite of model speakers, referred to by Pāṇini himself as śiṣṭa. The work also accounts both for some features specific to the older Vedic form of the language, as well as certain dialectal features current in the author’s time.
ŚrutiShruti (श्रुति, , ɕrʊtɪ) in Sanskrit means "that which is heard" and refers to the body of most authoritative, ancient religious texts comprising the central canon of Hinduism. Manusmriti states: Śrutistu vedo vijñeyaḥ (Devanagari: श्रुतिस्तु वेदो विज्ञेयः) meaning, "Know that Vedas are Śruti". Thus, it includes the four Vedas including its four types of embedded texts—the Samhitas, the Upanishads, the Brahmanas and the Aranyakas. Śrutis have been variously described as a revelation through anubhava (direct experience), or of primordial origins realized by ancient Rishis.
SmritiSmriti (स्मृति, IAST: ), literally "that which is remembered" are a body of Hindu texts usually attributed to an author, traditionally written down, in contrast to Śrutis (the Vedic literature) considered authorless, that were transmitted verbally across the generations and fixed. Smriti is a derivative secondary work and is considered less authoritative than Sruti in Hinduism, except in the Mimamsa school of Hindu philosophy. The authority of smriti accepted by orthodox schools, is derived from that of shruti, on which it is based.
PatanjaliPatanjali (Patañjali), also called Gonardiya or Gonikaputra, was a Siddhar; a Hindu author, mystic and philosopher. Estimates based on analysis of his works suggests that he may have lived between the 2nd century BCE and the 4th century CE. He is believed to be an author and compiler of a number of Sanskrit works. The greatest of these are the Yoga Sutras, a classical yoga text. There is speculation as to whether the sage Patañjali is the author of all the works attributed to him, as there are a number of known historical authors of the same name.
BrahmanaThe Brahmanas (ˈbrɑːmənəz; Sanskrit: ब्राह्मणम्, Brāhmaṇam) are Vedic śruti works attached to the Samhitas (hymns and mantras) of the Rig, Sama, Yajur, and Atharva Vedas. They are a secondary layer or classification of Sanskrit texts embedded within each Veda, which explain and instruct on the performance of Vedic rituals (in which the related Samhitas are recited). In addition to explaining the symbolism and meaning of the Samhitas, Brahmana literature also expounds scientific knowledge of the Vedic Period, including observational astronomy and, particularly in relation to altar construction, geometry.
