SAS'TRA, noun Among the Hindoos, a sacred book; a book containing sacred ordinances. The six great Sastras, in the opinion of the Hindoos, contain all knowledge, human and divine. These are the Veda, Upaveda, Vedanga, Purana, Dherma, and Dersana.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI