词根：nomin, nomen = name（名字）
来自拉丁语的nomin,nomen意为name。另外，来自希腊语的意为law,order,rule的nom与该词根形态、意思相似。
1. nominal （只是名字的、名目的nomin (=name)
adj.名字的；名义上的，有名无实的；不重要的，微不足道的；[语]名词性的
nominally adv.名言上地
The chair has nominal authority,but the real person in power is the executive secretary.主席只拥有名言上的职权，实际掌权的是行政秘书。
2. nominate
v.提名；命名，任命
nominate Nixon for the presidency提名尼克松为总统候选人
President Nixon nominated Henry Kissinger as Secretary of State.尼克松总统任命亨利.基辛格为国务卿。
3. nomination
n.任命；提名；任命（或提名）权
How many nominations have there been so far?截至现在提名了多少人？
4. nominative
adj.[语]主格的；被提名的；被任命的
n.[语]主格
the nominative case（主格）
Is it nominative or elective? 是提名还是选举？
5. nominee 《-ee 表示动作的接受者》
n.被提名者；被任命者
6. denominate 《de- = down》（定下名字）
v.命名，称呼...为... *de (=intensive)
They did not denominate him a priest.他们不叫他牧师。
7. denomination
n.（特别指分支、教派、流派的）名字，名称；命名；宗派，教派；（度量衡、货币等的）单位、面积 *de (=intensive)
denominational adj.宗派遥，教派的 denominational schools 教派学校
The Protestant denominations include the Methodists,Presbyterians and Baptists.新教诸派包括循道宗教徒、长老派成员和浸礼教徒。
clergy of all denominations所有宗派的牧师
The US coin of the lowest denomination is the cent.最小面额的美国硬币是分币。
8. denominator
n.[数]分母；命名；共同者 *de(=intensive)
9. nominalism
n.唯名论
cf.realism 实体论；实在论
10. renomination
n.重新提名；提名连任 *re (= again)
renominate v.重新提名；提名连任
11. renown 《re- (again) + nown = nomin(name)》
n.名望；声誉 （再三出现的名字）
12. misnomer
n.名字、名词的误用；错误的名词 《mis- = worng》
13. ignominy
n.不名誉；羞耻；可耻的行为 《ig- = in- not》
14. ignominious
adj.不名誉的；可耻的；屈辱的
词根词缀：exa-
【来源及含义】Greek: from hexa-, "six"; a decimal prefix used in the international metric system for measurements
【相关描述】This is a prefix that is used in the metric [decimal] system as one-quintillion [U.S.] or trillionfold [U.K.], 1018 [1 000 000 000 000 000 000]. The metric symbol for exa- is E.
【相关词根词缀】 Related "metric" families: yotta; zetta; peta; tera; giga; mega; kilo; hecto; deka; deci; centi; milli; micro; nano; pico; femto; atto; zepto; yocto.
【同源单词】exabit, exabyte, exagram, exajoule, exasecond
词根词缀：giga-, gig-
【来源及含义】Greek: "giant"; a decimal prefix used in the international metric system for measurements
【相关词根词缀】 Related "metric" families: yotta; zetta; exa; peta; tera; mega; kilo; hecto; deka; deci; centi; milli; micro; nano; pico; femto; atto; zepto; yocto.
【同源单词】gigabit, gigabyte, gigacycle, gigaelectronvolt, gigaflop, gigahertz
词根词缀：kilo-, kil-
【来源及含义】Greek: one thousand; a decimal prefix used in the international metric system for measurements and representing 103 or 1 000
【相关词根词缀】 Related "metric" families: yotta; zetta; exa; peta; tera; giga; mega; hecto; deka; deci; centi; milli; micro; nano; pico; femto; atto; zepto; yocto.
【同源单词】kilo, kiloampere, kilobaud, kilobit, kilobytes, kilocalorie
词根词缀：peta-
【来源及含义】Greek: derived from penta-, "five"; a decimal prefix used in the international metric system for measurements
【相关描述】Used in the metric [decimal] system as one quadrillion [U.S.] or thousand billionfold [U.K.], 1015 [1 000 000 000 000 000] The metric symbol for peta- is P.
【相关词根词缀】 Related "metric" families: yotta; zetta; exa; tera; giga; mega; kilo; hecto; deka; deci; centi; milli; micro; nano; pico; femto; atto; zepto; yocto.
【同源单词】petabecquerel, petabyte, petaflop, petaflops, petagram, petahertz
词根词缀：tera-
【来源及含义】Greek: "monster, marvel"; a decimal prefix used in the international metric system for measurements
【相关描述】Used in the metric [decimal] system as one trillion [U.S.] and billionfold [U.K.]: 1012 [1 000 000 000 000] or a million million. The metric symbol for tera- is T.
According to the Academic Press Dictionary of Science and Technology, Harcourt Brace Jovanovich, Publishers, 1992: Tera- comes "from a Greek term meaning 'marvel' or 'monster,' with the sense that this is a huge and marvelous quantity." Oh, PLEASE!
It would make much more sense to have tera based on tetra- (Greek), "four" rather then terato-, "monster, marvel"; which has no relative connection with this or any other metric unit.
【相关词根词缀】 Related "metric" families: yotta; zetta; exa; peta; giga; mega; kilo; hecto; deka; deci; centi; milli; micro; nano; pico; femto; atto; zepto; yocto.
【同源单词】terabit, terabyte, teracurie, teracycle, teraflop, terahertz
词根词缀：yotta-
【来源及含义】Greek: from octo-, "eight"; a decimal prefix used in the international metric system for measurements
【相关词根词缀】 Related "metric" families: zetta; exa; peta; tera; giga; mega; kilo; hecto; deka; deci; centi; milli; micro; nano; pico; femto; atto; zepto; yocto.
【同源单词】yottabit, yottabyte, yottagram, yottajoule, yottaliter, yottameter