词根：ed, es = to eat 吃

  来自拉丁语的edere意为to eat,变形为es。同义词根有来自拉丁语的vor和精算希腊语的phag。


同源词：

1. obese [ob-(=intensive)加强意 + es <ed(=eat) →很能吃的，吃货→ ]
  adj.臃肿的，肥胖的
  obesity n. [见上，-ity 名词后缀→] 肥胖
  Nearly 20% of all Americans are now classified as obese. 现在美国人中有近20%可被利用的肥胖。

2. edible  [ed吃 + -ible 形容词后缀，可...的]
  adj.可以食用的
  n.(pl.)适合食用的东西；食品

3. edibility  [ed 吃 + -ibility 名词后缀，可...性 ]
  n.适于食用,可食性

3. inedible  [in- 不  + ed 吃  + -ible 可...的 → 不可吃的→]
  adj.不适用于食用的，不能吃的

4. edacious  [ed 吃 + -acious 形容词后缀，表示有...性质的，好...的 →]
  adj.贪吃的，狼吞虎咽的

5. edacity  [ed 吃 + -acity 名词后缀,表示性质、情况 →]
  n.贪吃，狼吞虎咽

词根：apt(ept, att) = fit 适当的

  来源于拉丁语的aptus(=fit),词根ept,att是apt的变形。

同源词：

1. adapt [便适合于某物ad(= to) + apt (=fit)]
  vt. oneself + to +sth 使适应，使合适：改编；改造
  vi. to + sth
  adaptation  n. 适应，顺应；改编
  adaptability  adj.适应性
  adaptable adj.可适应的；可改蝙的
  adapted  adj. 合适的
  adaptive  asdj.合适的，适应的
  They say it takes 6 weeks to adapt to a new town after you move. 人们说搬家之后需要6用的时间来适应新城市的生活。

2. adept [正好适合于某物的，合适的ad(=to) +ept<apt(=fit)]
  adj. 熟练的，娴熟的，精通的
  n. 能手；内行
  He's quite adept at archery，nearly always hitting the target dead on. 他很擅长射箭，几乎每次都能射中靶心。

3. inept [不适当的in(=not)+ept<apt(=fit)]
  adj. 不适当的；不熟练的；愚笨的；无能的
  ineptitude  n. 不熟练，不适宜；不当的言行
  ineptly  adv. 不适当地
  l apologize for my inept remark;I never meant to offend you． 我为自己不恰当的言语道歉,我绝不是有意冒犯您。

4. apt
  adj. 合适的，恰当的；聪明的；易于…的，有…倾向的
  aptly  adv. 适当地；巧妙地
  aptness  n. 适合性；倾向；才能

5. aptitude
  n.恰当，适宜；天资；倾向
  aptitude test  能力倾向测验
  Scholastic Aptitude Test  学习能力倾向测试，即SAT,美国大学本科标准入学考试

6. attitude
  n.态度；姿势 *att<apt(=fit)
  strike an artitude  装腔作势

7. attitudinize
  v. 装腔作势 *att<apt(=fit)

8. contraption
  n.奇妙的装置；新发明物 *contr<contra(=against)

9. periapt
  n.护身符 *peri(=around)

词根词缀：iso-, is-

【来源及含义】Greek: equal; by extension: same, similar, alike; normally used as a prefix

【相关描述】Used in numerous terms, nearly all scientific; denoting: equality, similarity, uniformity, or identity; the second element being properly and usually of Greek origin, rarely of Latin [the proper prefix in the latter case being equi-]. In biology, denoting for or from different individuals of the same species). For a large list of iso- opposites or antonyms, see aniso-.

【相关词根词缀】 Inter-related cross references, directly or indirectly, involving word units dealing with "equal, identical, same, similar": auto-; emul-; equ-, equi-; homeo-; homo-; pari-; peer; rhomb-; syn-; tauto-.

【同源单词】chronoisothermal, geoisotherm, isacoustic, isadelphous, isallobar, isallobaric

词根词缀：palli-, pallio, pallit-

【来源及含义】Latin: mantle, covering; cloak

【相关描述】 To palliate, extenuate, cloak. These words, as here compared, are used in a figurative sense in reference to our treatment of wrong action. We cloak in order to conceal completely. We extenuate a crime when we endeavor to show that it is less than has been supposed; we palliate a crime when we endeavor to cover or conceal its enormity, at least in part. This naturally leads us to soften some of its features, and thus palliate approaches extenuate until they have become nearly or quite identical .

【同源单词】pallia, palliament, palliate, palliated, palliation, palliative

词根词缀：peni-, pen-

【来源及含义】Latin: paene, almost, nearly

【同源单词】antepenult, antepenultimate, antepenultimate, Baja California Peninsula, Iberian Peninsula, peninsula