The Collaborative International Dictionary
Discoast
Discoast \Dis*coast"\, v. i. [Pref. dis- + coast: cf. It. discostare.] 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.
Wiktionary
discoast
vb. (context obsolete intransitive English) To depart; to quit the coast (that is, the side or border) of anything; to be separated.