词根：reg (reig) = to rule（统治）, king（王）, 规则

  来自拉丁语的reg意为to rule，king。reig是它的变形。同义词根有来自希腊的arch,cracy/crat。
  （*拉丁文regere(=to rule),rex(=king)——英文字根字典）

同源词：

1. regal （治理的reg(=rule)）
  adj.国王的，帝王的；国王般的；庄严的，华丽的
  Our Great Dane,Bobby,has a noble,even regal manner.我们的大丹狗博比有一种贵族，甚至是帝王的风范。

2. regnant
  adj.统治的；优势的，占支配地位的
  Queen Regnant （作为君主的）女王

3. regicide
  n.弑君（罪）；弑君者 *cid(=kill)

4. Regina
  n.女王（略作：R.）
  Elizabeth Regina （略作：E.R,用于正式文件中）伊丽莎士白女王
  Regina v. Hay女王诉海案（诉讼事件的名称）
 
5. regent
  n.摄政王；<美>（州立大学的）校务委员
  adj.摄政的
  the Prince Regent 摄政王
  the Queen Regent 摄政女王
 
6. regency
  n.摄政；摄政统治区；摄政期；摄政权；<美>（州立大学等的）校务委员职位
  the Regency [英史]报政时期

7. regalia
  n.王位的标志（如王冠）；（官职、协会等的）徽章，标记

8. regime
  n.政权；政体
  military regime 军事政权
  under the old regime在旧政体下

9. regiment
  n.[军]团（缩写：regt,R.）；(~of)大群的
  v.使系统化；严密管制，编成团队
  regimentation n.系统化；严密管制
  the first battalion of the Manchester Regiment 曼彻斯特团第一营
  whole regiments of starlings 一大群惊鸟
  regiment the workers of a country严密控制一个国家的劳动者

10. regimental
  adj.团的；兵营式的
  n.(pl.)军装
  regimental colr/tie 团旗/团旗的装饰带
  in full regimentals 穿一身军装

11. regimen
  n.食疗法；养生法

12. region
  n.地域，地带，地区；（艺术、科学等的）领域；（身体的）局部，部位
  tropical/fertile/forest region 热带地区/富饶的地区/森林地带
  the lower/infernal/nether regions 地狱
  the upper regions 天国
  region beyond the grave 地府
  region of metaphysics 形而上学的领域
  abdominal /lumbar region 腹部/腹部

13. regular
  adj.端正的；整齐的；规律的；定期的；日常的；不变的；正规的，正式的；<美>政党领导选定的；<口>挺不错的
  n.(pl.)正规兵；常客；忠于自己政党的人
  regularly adv.有规则地；定期地
  garden regularly laid out 修剪得整整齐齐的花园
  regularity n.规则；一成不变
  win a prize for regularity of attendance 得全勤奖
  regular breathing /habits 有规律的呼吸/习惯
  regular customers 常客
  soldiers 正规兵; regular army 正规军; regular member 正式成员

14. regularize
  v.使有规律；使规范化
  regularize the proceedings 调节

15. regulate
  v.控制；管束；调整（机器等），调节
  regulator 调整者；调整器；（特别指手表等的）快慢针
  regulate one's conduct/expenditure 控制行为/费用
  regulate the traffic 指挥交通
  regulate a clock校准一只钟表
  regulate the speed of a machine 调节木器的速度

16. regulation
  n.调整，调节；规则，规定，法规
  adj.按规定的，正式的
  regulation of affairs /of a clock 业务的/钟的调整
  safety /traffic regulations 安全规则/交通规则
 
17. reign  *reig,reg(=rule)
  n.支配，统治；在位期间；优势
  v.支配；占优势；盛行
  the Reign of Terror 法国资产阶级革命期间的恐怖统治时期
  in the reign of King Alfed 在艾尔弗雷德国五的统治下
  reign of law /reason 法律/理性的主宰
  The King reigns,but he does not rule.国王是国家元首，但是不法理国家事。
  reign over people 统治人民
  Silence reigns.四周一片寂静
  reigning beauty 第一美人

后缀：-most [形容词后缀]

表示最...的

easternmost 最东的

westernmost 最西的

topmost 最高的

lowermost 最低的

uppermost 最高的

rearmost 最后面的

middlemost 最当中的

headmost 最前面的

aftermost 最后面的

inmost 最里面的

outmost 最外面的

foremost 最前面的

hindmost 最后面的

farmost 最远的

词根词缀：arm-

【来源及含义】Latin: weapon; implement of war

【相关描述】Don't confuse this element with another English "arm", meaning "upper limb" of the body.

【同源单词】alarum, arm, arm, armada, armadillo, armament

词根词缀：atrio-, atri-

【来源及含义】Latin: entrance hall or chamber; upper heart chamber; central room

【同源单词】atrial, atrial electrogram, atrial fibrillation, atriomegaly, atrioseptoplasty, atrioseptostomy

词根词缀：brachi-, brachio-

【来源及含义】Greek: arm [especially the upper arm from the shoulder to the elbow]

【同源单词】abrachia, abrachia, abrachiocephalia, abrachiocephalus, acephalobrachia, antebrachial

词根词缀：ethero-, ether-, aethero-, aether-, aither-

【来源及含义】Greek > Latin: burn, shine, to kindle; light up; the heavens; the upper air, the sky

【相关词根词缀】 Etymologically related "light, shine, glow" word families: fulg-; luco-; lumen-, lum-; luna, luni-; lustr-; phengo-; pheno-; phospho-; photo-; scinti-, scintill-; splendo-. Cross references of word groups that are related, directly, indirectly, or partly to: "fire, burn, glow, or ashes": ars-, ard-; -bust; cand-, cend-; caust-, caut-; crema-; ciner-; flagr-; flam-; focus, foci-; fulg-; gehenna-; ign-; phleg-; phlog-; pyreto-, -pyrexia; pyr-; spod- (ashes; waste); volcan-.

【同源单词】ether, ether lavage, etherated, ethereal, ethereality, etherealization

词根词缀：ethyl-

【来源及含义】Greek: upper air, purer air [alcohol and sufuric acid]; in scientific terminology, "volatile, clean-smelling, euphoria-producing liquid composed of alcohol and sufuric acid"

【同源单词】ethanol, ethyl, ethyl cellulose, ethyl gasoline, ethyl tert-butyl ether, ethylamine

词根词缀：gnatho-, gnath-, -gnatha, -gnathan, -gnath, -gnathia, -gnathic, -gnathous

【来源及含义】Greek: jaw

【相关描述】The jaw is the name applied to the bones which contain the teeth.

The two upper jaw-bones, the maxillae, are firmly attached to the other bones of the face.

The lower jaw, the mandible, is shaped in a form similar to that of a horseshoe, and, after the first year of life, it consists of a single bone.

It forms a hinge-joint with the squamous part (thin, plate-like section) of the temporal bone, immediately in front of the ear.

Both the upper and the lower jaw-bones include deep sockets known as alveoli, which contain the roots of the teeth.

【同源单词】agnathia, anisognathous, atelognathia, brachygnathia, chaetognath, cheilognathoschisis

词根词缀：humero-, humer-

【来源及含义】Latin: shoulder, upper arm; pertaining to the bone that extends from the shoulder to the elbow

【同源单词】acromiohumeral, fracture of the humerus, humeral, humeroradial, humeroscapular, humeroulner

词根词缀：ili-, ilio-

【来源及含义】Latin: hip bone

【相关描述】A combining form denoting the illium or one of the broad upper bones of the pelvis.

【同源单词】iliococcygeal, iliocolotomy, iliocostal, iliodorsal, iliofemoral, iliofemoroplasty