D defs.my
Entry 1 sense Webster, 1913

Patois

/(pȧ`twä")/ · Pa·tois · IPA /pæˈtwɑ/
01 n. A dialect peculiar to the illiterate classes; a provincial form of speech.
  1. 1.
    A dialect peculiar to the illiterate classes; a provincial form of speech.
    “The jargon and patois of several provinces.” Sir T. Browne.