theretoforeWiktionary 原文英美构词拆解therethere词干toforetofore词干词源链古英语Old English约 450–1150 年þǣr tōforan↓ 继承中古英语Middle English约 1150–1500 年ther-to-fore↓ 继承英语Englishtheretofore词源说明From Middle English ther-to-fore, þeretofore, þer to-fore, þer toforn, þær toforen, from Old English þǣr tōforan, equivalent to there + tofore.释义副词adverb1Until that time.2Before that.