词根：rect, rig = straight（直的）, right（公正的；正当的）
来自拉丁语的rect,rig 意为straight,right。
（*拉丁文rectus (=right,straight) —— 英文字根字典）
同源词：
1. maladroit（不能直着拉向某物的mal(=bad) + a(=to) + droit<rect(=straight,right)）
adj.不灵巧的，不熟练的，笨拙的
She is somaladroit in physical education that she resembles a clown! 她在体育课上笨拙得像个小丑！
2. incorrigible（无法一起直着拉走的 in(=not) + cor<com(=togehter) + rig(=straight)）
adj.（坏习惯等）不能被纠正的；无可救药的；根深蒂固的，积习难改的
The prison guards describe the prisoner as in corrigible.监狱的看守们说罪犯无可救药。
3. rectify（使正确 rect(=right)）
vt.改正；纠正（恶习等），矫正；精馏
rectification n.改正；精馏
rectifier n.矫正者；精馏器
The onboard computer continually rectifies flight path errors.机载电脑不断地纠正航道错误。
4. corrigible
adj.可改正的；有待改正的 *cor<com(=togehter)
5. dirigible
n.飞船 *di<dis(=away,apart)
6. corrigendum
n.（书籍）应更正的错误；勘误表 *cor<com(=together)
7. rigid
adj.坚硬的；坚固的；不易折断的；严格的；刻板的；严密的
rigidity n.坚硬；死板；严格
rigid piece of metal 坚硬的金属片
rigid disciplinarian 严格的纪律执行者
rigid rules 严格的规则
8. rigor
n.严厉；苛刻；严格；苛刻的行为；艰苦；严酷
rigor mortis 死后僵硬
rigors of prison life 监狱生活的艰苦
rigor(s) of the winter in Canada 加拿大冬天的严酷
9. rigorous
adj.严酷的；苛刻的；严格的，严厉的
rigorous discipline 严格的纪律
rigorous search for dutiable goods 对关税货物的严格检查
rigorous climate 严酷的气候
10. righteous
adj.正当的；正义的，正直的；公正的
righteousess n.公正；正当；正直
the righteous and the wicked 正直的人和邪恶的人
righteous anger 义愤
11. rightful
adj.正义的；公正的；正当的；合法的；依法享有权利的
rightful owner of the land 土地的合法拥有者
the rightful king 法定的国王
12. rectal
adj.直肠的
13. rectangle
n.矩形（正确的角-->直角）《-fy = to make》
14. rectitude
n.诚实；正直（正确的事物）《-itude 抽象名词字尾》
15. rector
n.教区牧师；校长（矫正人心的人）
16. rectum = straight intestine
n.直肠《-um拉丁后缀》
17. correct
v.改正；校正；医治 adj.正确的；适当的（改正~）《cor- = con- = with》
18. correctitude
n.品行端正；适宜
19. direct
v.指导；指引
adj.直接的；坦白的《di- = dis- =apart》
20. directory
n.人名住址簿；指南 adj.指导的
21. erect
v.建立；竖立 adj.直立的；竖起的（笔直向上的）《e- =ex- = out,up》
22. erectile
adj.可建立的；勃起性的《-ile形容词后缀》
23. escort
v.护卫；护航 n.护卫；护花使者（中途完全不出差错地直接送到）《es- = ex- =out》
24. incorrect
adj.不正确的；错误的
25. indiect
adj.间接的；迂回的
词根词缀：gehenna-
【来源及含义】Hebrew > Greek > Latin: hell or hellfire
【相关描述】Moloch [MOH luhk] or Molech (Hebrew, melech: king). He was the god of the Ammonites, to whom children were made "to pass through the fire" as sacrifices. Children were dedicated ("passed over") and burned to Molech at the Tophet in the Valley of Hinnom near Jerusalem.
During the monarchical period of the Hebrews, the site was an infamous high place (called "topheth" and derived from an Aramaic word meaning "fireplace"), where some of the kings of Judah engaged in forbidden religious practices, including human sacrifice by fire; as mentioned earlier.
Probably because of these associations with fiery destruction and judgment, the word "Gehenna" came to be used metaphorically as a designation for hell or eternal damnation. As such, Gehenna is to be distinguished from Hades, which is either the bode of all the dead in general or the place where the wicked await the final judgment. In the New Testament, Gehenna designates the place or state of the final punishment of the wicked. It is variously described as a fiery furnace, an unquenchable fire, or an eternal fire prepared for the devil and his angels.
【相关词根词缀】 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-; ether-; flagr-; flam-; focus, foci-; fulg-; ign-; phleg-; phlog-; pyreto-, -pyrexia; pyr-; spod- (ashes; waste); volcan-.
【同源单词】gehenna, gehenne, gehennical
词根词缀：prav-
【来源及含义】Latin: crooked, crookedness; perverted, vicious, wicked; borrowed through Old French depraver or directly from Latin depravare, "to corrupt"; from de, "completely" + pravus, "crooked"
【同源单词】depravation, deprave, depraved, depravedly, depravedness, depravement
词根词缀：sceler-, scelero-
【来源及含义】Latin: wickedness, bad, evil deed, crime
【相关词根词缀】Inter-related cross references, directly or indirectly, involving word units meaning "bad, wrong": caco-, kako-; dys-; mal-; mis-; pessim-.
【同源单词】pavor sceleris, scelerat, scelerate, scelerophobia, scelestic