词根：oxy(ox) = sharp, acid 酸

  来自希腊语的oxy 意为sharp,acid。在元音前，oxy中的y脱落，变成ox。


同源词：

1. paroxysm （变得非常尖锐 par<para(=intensive) + oxy(=sharp,acid)）
  n.（愤怒、笑声等的）突然爆发；（周期性疾病的）发作
  A paroxysm of rage overtook her and she began shouting at the students. 她突然大发脾气，向学生们大声喊叫。

2. oxygen
  n.氧气 *gen (=birth)
  oxygenize v.使氧气
  oxygen mask/tent 氧气罩/氧气帐
  oxygen walker （肺病、心脏病患者用的）小型携带用吸氧器
  oxygen cycle 氧循环（大气中的氧气通过动物的呼吸变成二氧化碳，然后二氧化碳依靠植物的光合作用重新成为氧气的循环

3. oxymoron
  n.[语]矛盾形容法（例如：sweet sorrow,cruel kindness) *noron (=foolish)

4. oxide
  n.氧化物 *ox<oxy(=acid)
  oxidization n. 氧化（作用）
  iron oxide 氧化铁

5. oxidize
  v.（使）氧化；（使）生锈 *ox<oxy(=acid)
  oxidizing agent/flame 氧化剂/氧化焰
  oxidized silver 氧化了的银

6. dioxide
  n.二氧化物 *di(=two),ox<oxy(=acid)

词根：part = part（部分）, to part（分开）

  来自拉丁语的part 意为part。

  （*拉丁文partem(=part),partire(=to part)——英文字根字典）

同源词：

1. impartial（不分割某物的 im<in(=not) + part(=part)）
  adj.公平的，不偏不倚的
  impartiality n.公正，不偏不倚
  impartially n.公平地
  Ideally a judge will be impartial in his administration of justice.理想地说，法官应该公正执法。

2. impart（把某物分给、分配某人im<in(=to) + part(=part)）
  vt.sth + to +sb（把拥有的东西等）分给；给予；传授；告知（秘密、消息等）
  The best teachers impart wisdom as well as knowledge to their students.最优秀的教师不仅向学生传授知识，还传授智慧。

3. repartee（作为酬答拿出来re(=back) + part(=part)）
  n.巧妙的应答；机智的反驳
  After a few minutes of repartee,she suddenly began to cry.在几分钟的巧妙应答后，她突然哭了起来。

4. partition（分割part(=part)）
  n.分割，划分，分开；隔离物；隔墙；隔板
  vt.分割；隔开
  partitive adj.区分的；[语]表示部分的
  The partition between our cubicles fell over and broke a vase.我们寝室间的隔板倒了，砸碎了花瓶。

5. partial（部分的part(=part)）
  adj.部分的，局部的；不公平的，偏袒的；偏爱的
  partiality n.偏袒；偏爱
  partially adv.部分地;不公平地，偏袒地
  A partial list of winners has been released to the press.一部分获胜者名单已经被透露给了媒体。

6. apartheid
  n.（南非）种族隔离（政策）*a (=away)

7. apartment
  n.公寓（多户分住的住宅里一户居民居住的房间）*a(=away)
  apartment comlex （设有各种公共设施的）综合性公寓建筑

8. compartment
  n.区划，划分；（火车的）隔间；（客船等的）小房间，小客房 *com(=with)
  compartmentalize v.划分；区分
  The first-class compartments are in front.一等舱在前面。

9. department
  n.部；部门；（大学的）系；（法国等的）省 *de(=away)
  departmental adj.部门的
  department duties 各部门的职责
  Department of State <美>国务院
  department store 百货商场
  department head/chairman （大学的）系主任

10. depart
  v.出发，离开；背离（习惯、原则等）；逝世 *de(=away)
  departed adj.以往的，过去的；逝世的
  departed glory 过后的荣耀
  pray for the souls of the departed 为死者的灵魂祈福

词根词缀：inter-, intero-

【来源及含义】Latin: between; among, mutually, together; on the inside, internal

【相关描述】Although abstracted from the many compounds in which it entered English, the form inter- was not generally considered a living prefix in English until the 1400s.

During the later period of Middle English many words borrowed in the Old and Middle French forms entre-, enter- began to be consciously respelled with Latin inter-; although vestiges of the older French borrowings are found in entertain and enterprise.

The living prefix inter- is now freely added to almost any element in English to create such formations with the meaning of "between" and "among". The words formed by intra- are closely related to this inter- prefix; in fact, they both apparently came from the same Latin source.

【相关词根词缀】 Related "together" units: com-; greg-; struct-. Cross references of word families related directly, or indirectly, to: "internal organs, entrails, inside": ent-; enter-; fistul-; incret-; intra-; splanchn-; viscer-.

【同源单词】ad interim, anterointernal, Caput inter nubila condit, electrical interference, electron compound, inter canem et lupum