"of or pertaining to the ancient people of southern Italy," 1590s, from Latin Osci, Opsci (plural) "Oscans," literally "worshippers of Ops," a harvest goddess, the name related to Latin ops (genitive opis) "abundance, plenty, wealth, riches," from PIE root *op- "to work, produce in abundance." As a noun, in reference to a member of the people occupying much of southern Italy in ancient times, 1753; in reference to their language, by 1813.