- quid (n.1)
- "bite-sized piece" (of tobacco, etc.), 1727, dialectal variant of Middle English cudde, from Old English cudu, cwidu (see cud).
- quid (n.2)
- "one pound sterling," 1680s, British slang, possibly from quid "that which is" (c.1600, see quiddity), as used in quid pro quo (q.v.).