demountWiktionary 原文英美构词拆解dede-前缀mountmount词干de-reversal, undoing · to remove from, removed词源链原始词根原始印欧语Proto-Indo-European约前 4500–前 2500 年*men-英语Englishdemount词源说明From de- + mount.释义动词verb1transitiveTo remove from its mounting; to take down from a mounted position.2obsoleteTo dismount.同族词派生词 1demountable