— Upanishadic , adj.
/ooh pan"i shad', ooh pah"ni shahd'/ , n. Hinduism.
any of a class of speculative prose treatises composed between the 8th and 6th centuries B.C. and first written A.D. c1300: they represent a philosophical development beyond the Vedas, having as their principal message the unity of Brahman and Atman.
[ upanisad, equiv. to upa near + ni - down + - sad, sandhi variant of sad- SIT 1 ]