D defs.my
Entry 1 sense Webster, 1913

Math

/(măth)/ · IPA /mæθ/
01 n. A mowing, or that which is gathered by mowing; -- chiefly used in composition; as, an aftermath.
  1. 1.
    A mowing, or that which is gathered by mowing; -- chiefly used in composition; as, an aftermath.[Obs.]
    “The first mowing thereof, for the king's use, is wont to be sooner than the common math.” Bp. Hall.