some Prakrit dramas to represent vernacular dialogue. Preserved examples of Magadhi Prakrit are from several centuries after the theorized lifetime of the Buddha, and include inscriptions attributed to Asoka Maurya. Differences observed between preserved examples of Magadhi Prakrit and Pali lead scholars to conclude that Pali represented a development of a northwestern dialect of Middle Indic, rather than being a continuation of a language spoken in the area of Magadha in the time of the Buddha. Lexicon Nearly every word in Pāḷi has cognates in the other Middle Indo-Aryan languages, the Prakrits. The relationship to Vedic Sanskrit is less direct and more complicated; the Prakrits were descended from Old Indo-Aryan vernaculars. Historically, influence between Pali and Sanskrit has been felt in both directions. The Pali language's resemblance to Sanskrit is often exaggerated by comparing it to later Sanskrit compositions—which were written centuries after Sanskrit ceased to be a living language, and are influenced by developments in Middle Indic, including the direct borrowing of a portion of the Middle Indic lexicon; whereas, a good deal of later Pali technical terminology has been borrowed from the vocabulary of equivalent disciplines in Sanskrit, either directly or with certain phonological adaptations. Post-canonical Pali also possesses a few loan-words from local languages where Pali was used (e.g. Sri Lankans adding Sinhala words to Pali). These usages differentiate the Pali found in the from later compositions such as the Pali commentaries on the canon and folklore (e.g., commentaries on the Jataka tales), and comparative study (and dating) of texts on the basis of such loan-words is now a specialized field unto itself. Pali was not exclusively used to convey the teachings of the Buddha, as can be deduced from the existence of a number of secular texts, such as books of medical science/instruction, in Pali. However, scholarly interest in the language has been focused upon religious and philosophical literature, because of the unique window it opens on one phase in the development of Buddhism. Phonology Vowels Vowels may be divided into pure vowels: a, ā, e, o sonant vowels: i, ī, u, ū vowels short by nature: a, i, u vowels long by nature: ā, ī, ū vowels of variable length: e, o Long and short vowels are only contrastive in open syllables; in closed syllables, all vowels are always short. Short and long e and o are in complementary distribution: the short variants occur only