“离身”是一个英语词，“to part with or leave behind; to withdraw from one's body; to be separated from (by accident); of a man who is no longer present.” 离身，原指在战场上被俘虏后脱逃。后来用以比喻离开了自己所从事的活动或职业，即离开自己的工作岗位、工作场所或生活的地方；也形容已无法再接触和联系某人或者事物了。