词根：-grav-

【词根含义】：重;压迫;重要;挖,刻

【词根来源】：来源于拉丁语动词gravo, gravare, gravavi, gravatus(重,压迫)和形容词gravis, grave, gravior(重的,重要的);可追溯至古印欧语ghrebh-(挖),在日耳曼语中派生了grob-, grub-, grab-(挖,刻)。

【同源单词】：aggravate, engrave, grave, gravity, grief

前缀：en-

【词根含义】：入,向内;不,无;饰以…,配以;使…;动词前加强意义

【同源单词】：enable, enact, enamour, encircle, enclose

词根词缀：en-, em-, el-

【来源及含义】Greek: in, into, inward; within; near, at; to put, to go into, or to cover with; as, entomb, encamp, enfold; to provide with; as, to enlighten; to cause to be; as, to enlarge; thoroughly; as, enmesh; in, within, into; as enzootic

【相关描述】This prefix, en-, changes to em- before b, p, or ph.

【同源单词】disembark, disembarkation, embark, embarkation, embarkment, embezzle