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：a-, ab-, abs-

【来源及含义】Latin: prefix; from, away, away from

【相关描述】This prefix is normally used with elements of Latin and French origins (abs- usually joins elements beginning with c, q, or t).

The form ab- is regularly used before all vowels and h; and it becomes a- before the consonants m, p, and v. The prefix apo- has similar meanings.

This list is a very small sample of the multitudes of a-, ab-, abs- prefixes that are available in dictionaries and those in this unit are only meant to present a few examples.

【同源单词】abampere, abampere centimeter squared, abampere per square centimeter, abarticular, abarticulation, abbreviate

词根词缀：agryp-

【来源及含义】Greek: sleeplessness, wakefulness; originally, it meant "sleeping in the field"

【同源单词】agrypnetic, agrypnia, agrypnia senilis, agrypnocoma, agrypnode, agrypnotic

词根词缀：axillo-, axill-, axil-

【来源及含义】Latin: armpit; angle; borrowed directly from Latin ala which meant both "wing" and "the hollow under a wing or an arm"

【同源单词】armpit, axil, axilla, axillant, axillar, axillary

词根词缀：centro-, centr-, centri-, kentro-

【来源及含义】Greek > Latin: center; middle point, mid point; focus, focal point, focalize; zero in on

【相关描述】This element originally meant "sharp point, goad" or "spur".

【同源单词】acentric, acentric, acrocentric, allocentric, ambulatory surgery center, amphicentric

词根词缀：crud-

【来源及含义】Latin: raw, not cooked; literally, trickling with blood, bleeding; raw, bloody, cruel

【相关描述】The terms, cruelty and crudeness are closely linked etymologically. Cruel came via Old French cruel from Latin crudelis, a relative of Latin crudus; which actually meant "cruel" as well as "raw" and "bloody".

【同源单词】crude, crudely, crudeness, crudity, cruel, cruelly

词根词缀：-itis

【来源及含义】Greek: a suffix; inflammation, burning sensation; by extension, disease associated with inflammation

【相关描述】This suffix has come to mean "inflammation of" but originally it meant "pertaining to" or "of the". The Greek word nosos ["disease"] was either expressed or understood, although it might not be included with the basic element. For example, bursitis nosos would mean "disease of the bursa".

【同源单词】actilnoneuritis, adenitis, adrenalitis, allergyrhinitis, angioitis, angiopancreatitis

词根词缀：-ment

【来源及含义】Latin: a suffix; result of, means of, act of; place of action

【相关描述】The suffix -meant is a final word element derived through Middle English and French from the Latin suffix -ment(um), originally used to form agent and action nouns from verbs, now used to form nouns and denominative verbs in several related senses:

The verb combinations show no change in basic form: cement, compliment, lament.

Principal parts: -menting, -mented, -mented.

Related forms: -mentum (singular); -menta, -menti, -ments (plurals).

【同源单词】abolishment, abridgment, accompaniment, accomplishment, accouterment, achievement

词根词缀：pragmato-, pragmat-

【来源及含义】Greek > Latin: skilled in the law; busy, skilled in business; a thing done; to do, effect, accomplish, practice

【相关描述】It started in Greek with the meanings: "to do, act, perform"; then it meant "civil business, deed, act"; and into Latin as, "skilled in business or law". The meaning concerned with "practical results or values" is first recorded in the form pragmatical (1597) and later as pragmatic in 1853.

The form, "pragmatism", is a philosophy that stresses practical results.

【同源单词】pragmatagnosia, pragmatamnesia, pragmatic, pragmatical, pragmatically, pragmaticalness