hot这个词的词源是什么?答:原文:O.E. hat "hot, opposite of cold," also "fervent, fierce," from P.Gmc. *haitoz (cf. O.Fris. het, O.N. heitr, Du. heet, Ger. heiß "hot," Goth. heito "heat of a fever"), from PIE base *qai- (cf. Lith. kaistu "to grow hot"), the same root...