Begone \Be*gone"\, p. p. [OE. begon, AS. big[=a]n; pref. be- + g[=a]n to go.] Surrounded; furnished; beset; environed (as in woe-begone). [Obs.] --Gower. Chaucer.
Source: Webster's Revised Unabridged Dictionary (1913)
Begone \Be*gone"\, interj. [Be, v. i. + gone, p. p.] Go away; depart; get you gone.