Quid is defined as one British pound (a pound sterling), or to a lump of tobacco for chewing.(noun)
See quid in Webster's New World College Dictionary
Origin: < OE cwidu, var. of cudu, cud
noun pl. quid
Origin: ? orig. slang use of L quid, something, esp. in quid pro quo
See quid in American Heritage Dictionary 4
Origin: Middle English quide, cud
Origin: , from Old English cwidu.
noun pl. quid quid or quids
Origin: Possibly from Latin, something, what; see quiddity.
Learn more about quid