D defs.my
Entry 1 sense Webster, 1913

Discoast

· Dis·coast · IPA /dɪsˈkəʊst/
01 v. i. To depart; to quit the coast (that is, the side or border) of anything; to be separated.
  1. 1.
    To depart; to quit the coast (that is, the side or border) of anything; to be separated.[Obs.]
    “As far as heaven and earth discoasted lie.” — G. Fletcher.
    “To discoast from the plain and simple way of speech.” Barrow.