Definition of "Mas"

Mas

noun
plural Masses
1. (now historical, chiefly in representations of US and Caribbean dialect) Master, used as a title of respect.
  Quotations
  Is Mass’ Stone dead?
  1605 (first performance), Beniamin Ionson [i.e., Ben Jonson], “Volpone, or The Foxe. A Comœdie. […]”, in The Workes of Beniamin Ionson (First Folio), London: […] Will[iam] Stansby, published 1616, Act II, scene i
  Why, Mars Tom, I doan' want no rats.
  1884 December 10, Mark Twain [pseudonym; Samuel Langhorne Clemens], The Adventures of Huckleberry Finn: (Tom Sawyer’s Comrade) […], London: Chatto & Windus, […]
  ‘Thank ee, Mas’ Norman,’ replied Jim, touching his cap.
  1921, Henry Williamson, The Beautiful Years
2. (obsolete, Scotland) The title of someone holding a Master of Arts, especially a Presbyterian minister.