出典:Wiktionary
From Middle English *befreen, *bifreen, from 古期英語 befrēoġan (“to free, liberate”); equivalent to be- + free. Cognate with West Frisian befrije (“to liberate”), Dutch bevrijden (“to liberate, deliver”), German befreien (“to set free, liberate”), Swedish befria (“to liberate, free, deliver”).
befree (三人称単数 現在形 befrees, 現在分詞 befreeing, 過去形および過去分詞形 befreed)
出典:Wikipedia