| patois |
| Definition:
The dialect of a region's common people; as opposed to the dialect of the upper classes. Note: According to the OED, "French scholars distinguish dialects as the particular forms presented by a language in different regions, so long as there does not exist a common written language. When a common language has become established as the medium of general literature, the dialects lose their literary standing and become patois." |
| Etymology: The word means "rough speech" in French, and it perhaps derives from the Old French patoier, treat roughly. |
| Oxford English Dictionary: Its first citation in this sense is from 1643: "The Jargon and Patois of several Provinces." (Sir T. Browne Relig. Med. ii. §8) |