词根：qui, quiet = to rest（休息）, calm （安静的）

  来源于拉丁语的quiet，quies 意为 to rest（休息），calm （安静的）。

同源词：

1. acquit [让某人心境平和ac,ad(=to) + qui(=quiet)]
  vt. sb +of+ sth 宣判…无罪；使（自己）作出某种表现；使（自己）履行（或完成）
  acquittal  n. 宣判无罪；履行
  acquittance  adj.（债务的）清偿
  ex) The jury acquitted the prisoner after a short deliberation. 陪审团稍作审议，决定宣判犯人无罪。

2. acquiesce [面对某事变得安静ac<ad(=to, intensive)+qui(=quiet)]
  vi. to+sth  默认；默从
  acquiescence  n. 默认
  acquiescent  adj. 默认的
  ex) I finally acquiesced to my parents' demands that l stop smoking. 最后我还是默从了我父母的要求，答应戒烟。

3. disquieting [不让心境平和、安宁的dis（=not）+qui(=quiet,rest)]
  adj . 使不安的，令人担忧的
  disquiet  n. 使不安
  disquietude  n.  不安，担忧
  disquietingly  adv. 不安地，担忧地廷多
  ex) The solider could not sleep due to the disquieting sounds of battle in the distance. 从远处传来的令人不安的战斗声使那个士兵无法入睡。

4. tranquility [完全安静的、平稳的状态tran<trans(=intensive)+qui(=quiet, rest)]
  n. 平静；平稳
  tranquil  adj. 平静的；平稳的
  tranquilizer  n. 镇静剂
  tranquilize  v. 使安静；使镇定
  ex) The tranquility here at Loon Lake is marvelous.  卢恩湖非常平静。

5. quiescent
  n. 静止的，不动的
  quiescence  n. 静止，不活动；沉默

6. inquietude
  n. 不安，担心  *in(=not)

7. quietism
  n. [宗]寂静主义（天主教神修学派的主张）

8. quietude
  n. 寂静；宁静

9. requiem
  n.（天主教）安魂弥撒；安魂曲；挽歌  *re(=again,intensive)

10. unquiet
  adj.不安的；心神不宁的；纷扰的 un-(=not)

词根：lec ( let , lic, lig) = to entice

  来自拉丁语的lec意为to entice,它的变形为let,lic,lig等。

同源词：

1. delectable（引诱、唆使分离出来的 de (=away,from) + lec(=entice)）
  adj.令人愉快的，使人高兴的，宜人的；好吃的
  delectation n.愉快
  The smoked salmon was absolutely delectable. 熏鲑鱼真是美味可口。

2. dilettante
  n.（艺术等的）一知半解者，业余艺术爱好者 *di<dis(=away,from) ,let,lec(=entice)
 
3. delicate
  adj.微妙的，需要小心处理的；柔软的；纤弱的；精致的，精巧的；易损坏的；（光线）柔和的；（感觉）敏锐的，敏感的；（仪器）精密的；（食物）清淡的；鲜美的 *di<dis(=away,from) ,let,lec(=entice)
  delicate situation/question 微妙的事态/棘手的问题
  delicate skin of a young girl 小女孩柔嫩的肌肤
  delicate workmanship 精巧的工艺
  delicate china 易碎的瓷器
  delicate child 娇弱的孩子
  delicate shade of pink 浅粉色
  delicate sense of smell/touch 敏感的嗅觉/触觉
  delicate instruments needed by scientists 科学家们所需的精密仪器
  delicate food 美味的食物

4. delicacy
  n.精致，精美；优雅；敏感；微妙；棘手；柔软；（身体）纤弱；美味，佳肴
  the delicacy of her features 她容貌的优雅
  The political situation is one of great delicacy. 政局是最微妙的情形的之一。
  of extreme delicacy 非常棘手的
  all the delicacies of the season 该季节的所有美味
  table delicacies 各种美味、精美的食物

5. delicatessen
  n.（出售自己做好的肉、沙拉、熏鱼、香肠、罐头等的）熟食店（在美国多被称做deli)

6. delicious
  adj.美味的，香喷喷的；妙的，有趣的
  delicious cake 美味的蛋糕
  Sounds delicious 听起来不错
  delicious moment 愉快的瞬间
  What a delicious joke! 多么有趣的笑话！

7. delight
  n.快乐，高兴；乐事，乐趣 v.使人高兴

8. delighted
  adj. 高兴的
  I'm delighted to see you. 很高兴见到您。

9. delightful
  adj. 快乐的；高兴的
  delightful holiday 愉快的假期

词根词缀：audio-, aud-, audi-, audit-

【来源及含义】Latin: hearing, listening, perception of sounds

【相关词根词缀】 Related "hear, hearing; listen, listening" units: acous-; ausculto-.

【同源单词】Audi alteram partem, audibility, audible, audibleness, audibly, audiclave

词根词缀：ausculto-, auscult-

【来源及含义】Latin: listen, hear

【相关词根词缀】 Related "hear, hearing; listen, listening" units: acous-; audio-.

【同源单词】auscultate, auscultated, auscultation, auscultator, auscultatory, auscultatory sounds

词根词缀：capit-, capt-, cap-, cep-, ceps-, chapt-, chef, cip-

【来源及含义】Latin: head; leader, chief, or first

【相关描述】It may be surprising to see that a "captain" and a "chef" both belong to the same word family; however, a captain is, of course, the "head of a company of military soldiers", and a "chef is the captain of a group of cooks".

A chef, especially to those who love good food, is not a lowly official; and when it is remembered that the old saying that "an army travels on its stomach", a chef is every bit as important as a captain.

When the French borrowed words from Latin, they frequently used soft sounds. These French words, with their softer sounds, then made their way into the English language. At the same time, English borrowed words directly from Latin. So it is that in English we often have two words which share the same root, but which have different, though related, forms and meanings.

Don't confuse the words in this capit-, capt- unit with those in the cap-, cip-, "catch, seize" unit.

【同源单词】a capite ad calcem, achieve, achievement, achiever, acid rain, alopecia capitis totalis

词根词缀：musico-, music-

【来源及含义】Greek: mousike [techne] > Latin: musica, music; originally an art of the Muses

【相关描述】Pertaining to the Muses, especially the Muses of lyric poetry and song. From Muse plusicos, meaning "the art of combining sounds in sequence so as to produce aesthetic pleasure in the listener".

【同源单词】amusia, band music, chamber music, choral music, electro-acoustic music, electronic music synthesizer

词根词缀：sono-, son-, sona-, -sonous, -sonic, -sonically

【来源及含义】Latin: sound, that which is heard; noise

【同源单词】assonance, assonant, auscultatory sounds, biosonar, consonance, consonant

词根词缀：verber-,-verber

【来源及含义】Latin: to beat, to strike; to drive, to force back; from verber, whip, lash, rod; by extension, to make sounds or noises or those sounds and echoes that are thrown back again or repeatedly

【同源单词】A verbis ad verbera, optimum reverberation time, reverberant, reverberantly, reverberate, reverberation