Avesta people. The term "Avesta" is from the 9th/10th-century works of Zoroastrian tradition in which the word appears as Zoroastrian Middle Persian "abestāg", Book Pahlavi "ʾp(y)stʾkʼ". In that context, "abestāg" texts are portrayed as received knowledge, and are distinguished from the exegetical commentaries (the "zand") thereof. The literal meaning of the word "abestāg" is uncertain; it is generally acknowledged to be a learned borrowing from Avestan, but none of the suggested etymologies have been universally accepted. The widely repeated derivation from *"upa-stavaka" is from Christian Bartholomae ("Altiranisches Wörterbuch", 1904), who interpreted "abestāg" as a contraction of a hypothetical reconstructed Old Iranian
Avesta year, the third is recited at the six seasonal feasts, and the fourth at the beginning and end of summer. All material in the "Avesta" that is not already present in one of the other categories falls into a "fragments" category, which – as the name suggests – includes incomplete texts. There are altogether more than 20 fragment collections, many of which have no name (and are then named after their owner/collator) or only a Middle Persian name. The more important of the fragment collections are the "Nirangistan" fragments (18 of which constitute the "Ehrbadistan"); the "Pursishniha" "questions," also known