Avestan alphabet in the context of "Zend"

The Avesta is the text corpus of religious literature of Zoroastrianism. All its texts are composed in the Avestan language and written in the Avestan alphabet. Modern editions of the Avesta are based on the various manuscripts that have survived in India and Iran.

The individual texts of the Avesta were originally oral compositions. They were composed over a long period of several centuries during the Avestan period (possibly ranging from 15th century BCE – 4th century BCE). The written transmission began much later during the Sasanian era (224 to 651 CE), with the creation of the Avestan alphabet. The resulting texts were then compiled into the multi-volume edition of the Sasanian Avesta. This edition was lost sometime after the 10th century CE, and only a small portion of it has survived, scattered across a number of individual manuscript traditions. The oldest surviving fragment of such a manuscript dates to 1323 CE.

According to the alphabetic principle, letters and combinations of letters are the symbols used to represent the speech sounds of a language based on systematic and predictable relationships between written letters, symbols, and spoken words. The alphabetic principle is the foundation of any alphabetic writing system (such as the English variety of the Latin alphabet, one of the more common types of writing systems in use today). In the education field, it is known as the alphabetic code.

Alphabetic writing systems that use an (in principle) almost perfectly phonemic orthography have a single letter (or digraph or, occasionally, trigraph) for each individual phoneme and a one-to-one correspondence between sounds and the letters that represent them, although predictable allophonic alternation is normally not shown. Such systems are used, for example, in the modern languages Serbo-Croatian (arguably, an example of perfect phonemic orthography), Macedonian, Estonian, Finnish, Italian, Romanian, Spanish, Georgian, Hungarian, Turkish, and Esperanto. The best cases have a straightforward spelling system, enabling a writer to predict the spelling of a word given its pronunciation and similarly enabling a reader to predict the pronunciation of a word given its spelling. Ancient languages with such almost perfectly phonemic writing systems include Avestic, Latin, Vedic, and Sanskrit (Devanāgarī—an abugida; see Vyakarana). On the other hand, French and English have a strong difference between sounds and symbols.

Pazend (/pəˈzɛnd/) or Pazand (Middle Persian: 𐭯𐭠𐭰𐭭𐭣; Avestan: 𐬞𐬀𐬌𐬙𐬌⸱𐬰𐬀𐬌𐬥𐬙𐬌) is one of the writing systems used for the Middle Persian language. It was based on the Avestan alphabet, a phonetic alphabet originally used to write Avestan, the language of the Avesta, the primary sacred texts of Zoroastrianism.

Pazend's principal use was for writing the commentaries (Zend) on and/or translations of the Avesta. The word "Pazend" ultimately derives from the Avestan words paiti zainti, which can be translated as either "for commentary purposes" or "according to understanding" (phonetically).