The word "shasters" is an outdated spelling of the word "shastras", which is a Sanskrit word meaning "treatises" or "sacred scriptures". The correct spelling is with a single "s", not a double. The IPA phonetic transcription for "shastras" is /ˈʃʌstrəz/, with stress on the first syllable. The word is commonly used in Hinduism, Buddhism, and Jainism, referring to texts that provide guidance for spiritual and ethical living. It is important to use the correct spelling to ensure accurate communication of ideas and understanding of concepts.
Literally, ordinances; the sacred laws or institutes of the Hindoos-see sastra.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.