Etymology
From Middle English forbannen, partly from Middle English for- + bannen, equivalent to for- + ban; and partly from Old French forbenir (“to banish”). Cognate with Saterland Frisian ferbonne (“to banish”), West Frisian ferbanne (“to banish”), Dutch verbannen (“to banish”), German Low German verbannen (“to banish”), German verbannen (“to banish”), Swedish förbanna (“to curse, damn”).