出典:Wiktionary
From Middle English withsaken, from 古期英語 wiþsacan (“to forsake, abandon, renounce, refuse, deny, oppose, drive against”); equivalent to with- + sake. Compare Middle High German widersachen.
withsake (三人称単数 現在形 withsakes, 現在分詞 withsaking, 過去形 withsook, 過去分詞 withsaken)