negro necro g-c
a word for a black person, which is now usually considered offensive
being a member of the black peoples of humankind, esp. those who originate in sub-Saharan Africa.
n. 黑人
adj. 黑人的

例句：
“Discrimination is a hellhound that gnaws at Negroes in every waking moment of their lives to remind them that the lie of their inferiority is accepted as truth in the society dominating them”(&b{Martin Luther King, Jr.})
“歧视是地狱之犬，在黑人们醒来后的每时每刻它都在向他们狂吠，提醒他们在这个统治着他们的社会里，他们地位卑下的谎言却被当作真理来接受”(小马丁·路德·金)

necrosis
Death of cells or tissues through injury or disease, especially in a localized area of the body.
n.(细胞组织)坏死；【植物病理学】枯斑，黑斑病

necrology
A list of people who have died, especially in the recent past or during a specific period.
An obituary.
n. 死者名册；讣告

necromancy -mancy, divination 占卜 geomancy
The practice of supposedly communicating with the spirits of the dead in order to predict the future.
Black magic; sorcery.
Magic qualities.
n. 巫术，妖术

necromancer
magic, especially evil magic
literary the practice of claiming to talk with the dead
n.巫师，行妖术者；召亡魂问卜的巫术

necropolis police -polis, city 城
A cemetery, especially a large and elaborate one belonging to an ancient city.
n. 大墓地；史前时期的坟场

necrotomy atom
Surgical excision of dead tissue.
Dissection of a dead body.
n. 尸体解剖

词源小故事

Bridge 桥牌

桥牌是纸牌游戏的一种。据说最早的纸牌游戏是中国宋代一位官吏约在1120年间为他的妻妾们设计的。

欧洲最早的纸牌游戏在1392至1393年间。德国是最早的纸牌制造中心，他们牌上的图案为“铃铛”、“心脏”、“树叶”和“橡子”，分别代表“绅士”、“僧侣”、“地主”和“劳动者”。西班牙纸牌的图案则是“剑”、“棒”、“杯”和“钱”。

英国的纸牌最早叫biritch。到19世纪80年代，桥牌在英国风摩一时。起初妇女不打，但到了20世纪，妇女俱乐部日益增多，妇女打牌便不亚于男子。英国纸牌对考了别国的图案和乐称，然后自成一套，分别为club（梅花）、spade（黑桃）、heart（红桃）和diamond（方块）；其中club的词义即西班牙牌中的“棒”，但图案却是“三叶草”；spade则是从西班牙语的espada来的，意思是“剑”；heart，即人的“心脏”的图形；diamond（钻石）是从法语carreau（一块玻璃）的图案引伸来的。