词根：fin = end（末尾）, limit（界限）
来源拉丁名词的finis 意为end,limit。同义词根有来自拉丁语的termin,ultim 和来自希腊语的bys。注意有的词根书籍上会把词根fin 发成二个意来单独列出来，如蒋争的《英语词汇的奥秘》就把fin的end 和limit分开，这里我们把这二个意思放在一起，例句也放在一起了。
（*拉丁文finire(=to end),finis(=end,bound)。 —— 英文根字典）
同源词：
1. affinity（末端在近处 af<ad(=to,near) + fin(=end)）
n.亲密关系；相似；（异性间的）亲密感，吸引力；喜好，迷恋；[化]亲合性
I feel a greater affinity for dogs than for cats. 相比猫，我更喜欢狗。
2. definitive（完全见尾 de(=intensive) + fin(=end)）
adj.最终的；决定性的；限定性的
n.[语]限定词
The appeals court offered the definitive ruling in the case. 上诉法庭对那一事件作出了最终判决。
3. infinite（没有结尾in(=not) + fin(=end)）
adj.无穷的，无限的，无数的；极大的
n.(the ～)上帝
infinitely adv.无限地，无穷地
infinitesimal adj. [数]无穷小的；极小的 （-esimal 表示小的形容词后缀）
Some mystics who experience God say they feel infinite love and peace. 一些感受到过上帝的神秘主义者说他们体会到无穷的爱和安宁。
4. confine
v.限制，限定；禁闭，监禁 n.（pl.）范围，界限，边界 *con<com(=together)
conlined adj.受限制的；狭窄的
beyond the confines of human knowledge 超出人类的知识范围
within the confines of this valley 在这个山谷的范围之内
5. confinement
n.限制，局限；幽禁，监禁；分娩 *con<com(=together)
be placed in confinement 被监禁
six months solitary confinement 六个月的单独监禁
6. define
v.给...下定义；阐明 *de(=down)
definable adj.可定义的
7. definite
adj.清楚的；明确的 *de(=down)
definitely adv.明确地，确切地；（用于回答）肯定地，无疑地
definite time and place 明确的时间和地点
definite article 定冠词
8. definition
n.定义；限定；（轮廓的）清晰；（镜头的）分辨率 *de(=down)
9. infinitive
n.[语]不定式 adj.[语]不定式的 *in(=not)
10. infinitude
n.无限，无穷 *in(=not)
infinitude of small particles 无数小微粒
11. infinity
n.无限，无穷 *in(=not)
12. refine
v.精制；精炼；使文雅；推敲 *re(=again)
13. refined
adj.精炼的；文雅的；精制的 *re(=again)
refined manners/language 文雅的态度/言语
14. refinement
n.精炼，精制；文雅；精巧，精细 *re(=again)
a lady of refinement 文雅的女子
15. refiner
n.精制者，精炼者；精制机，精炼机 *re(=again)
sugar refiners 制糖厂厂主
16. refinery
n.精炼厂 *re(=again),ery(=place where)
sugar refinery 制糖厂
oil refinery 炼油厂
17. indefinite
adj.含糊的，模糊的；不明确的 *in(=not),de(=down)
indefinite answer 含糊的回答
18. indefinable
adj.不确定的，难以说明的 *in(=not),de(=down)
19. final
adj.最后的，最终的
n.（pl.）决赛；期末考试；（当天报纸的）末版
finalist n.决赛参赛选手
finally adv.最后，最终
tennis finals 网球塞
take his finals 参加期末考试
20. finale
n.结尾；（戏剧的）终场；（交响乐等的）末乐章，终曲
21. finality
n.结局；决定性
speak with an ari of finality 断言
22. finalize
v.完成；结束
23. finance
n.财政（学）；（pl.）（政府或公司的）财源
v.（为计划等）筹措、供给资金
24. financial
adj.财政的；财务的；金融上的
financial condition 财政状况
financial crisis 金融危机
financial difficulties 财政困难
financial resources 财源
25. financier
n.财政家；金融家
26. fine
n.,v. 罚款（结束的东西，加以解决的东西）
27. fine
adj.良好的；卓越的；精巧的 v.使精良；精美（被完成）
词根词缀：anco-, anc-
【来源及含义】Greek: ankos: a bend or hollow, an angle; a valley; also a crag
【同源单词】ancocole, ancophilous
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