精選寫作用字(字源解析)
1. terr = fear, 表示“害怕”
terrible  a 可怕的（terr+ible）
A terrible storm sprang up.
terrify  v 恐嚇（terr+ify）
The prospect of nuclear war terrifies the whole world.
terrific  a 極好的（terr+ific帶來→帶來可怕→好到很可怕！→極好的）
The audience was captivated by her terrific performance.
terrorist  n 恐怖分子（terror恐怖+ist表示人）  /  terrorism  n
Twenty people were killed in the latest terrorist attack.
deter  v 嚇住，威懾（de向下+ter）
The company's financial difficulties have deterred potential investors.
deterrent  a 威懾的 n 制止物（deter+r+ent）
the deterrent effect of prison sentences
The small fines for this type of crime do not act as much of a deterrent.
    
2. tim = fear, 表示“害怕”
timid  a 膽怯的 (= timorous)  /  timidity  n
Being a timid child, Isabella had learned obedience at an early age.
intimidate  v 恐嚇，威脅（in使+timid+ate→使人膽小→恐嚇）/  intimidation  n
Attempts to intimidate people into voting for the governing party did not work.

3. horr = fear, 表示“害怕”
horror  n 恐懼
Many people recoil with horror when they see a big spider like this.
horrible  a 可怕的，糟糕的
And now, like a thunderclap, has come this horrible news.
horrify  v 使恐懼
I was horrified at the idea of having to give a speech in front of so many people.
horrific  a 恐怖的 (= horrifying , horrendous)
He stiffened at the horrific sight.

4. phob, phobia = dislike, 表示“厭惡，恐懼”
希臘文phobos
phobia  n 恐懼症
The phobia may have its root in a childhood trauma.
hydrophobia  n 恐水症，狂犬病（hydro 水+phobia）
Hydrophobia is a morbid dread of water, also named rabies.
acrophobia  n 懼高症（acro 高+phobia）
She has acrophobia and always becomes dizzy in a high-rise elevator.
xenophobia  n 憎恨外國人，仇外情緒（xeno外面+phobia）
The growing number of refugees and migrants is leading to more intolerance and xenophobia in the region.

5. creed, cred = believe, trust, 表示“相信,信任”
拉丁文credere 
creed  n 信條 (= credo)（creed 相信→信條）
"Honesty is the best policy" is his creed in all his business dealings.
credence  n 相信，信用（cred+ence→相信）
The DNA results lend credence to the defendant's claim of innocence.
credit  n 信用，功勞，學分（cred+it 表名詞）
The credit for this invention goes to Mr. Lodge and his collaborators.
creditable  a 可信的，值得稱讚的（credit 相信+able 能…的）
The young German runner finished a creditable second.
credible  a 可信的，可靠的（cred 相信+ible 能…的）
His excuse is barely credible.
accredit  v 委任，歸功（ac去+credit→給予相信→委任）
He is accredited with the invention of the machine.
discredit  n 不信任，破壞名譽的人[事]  v不信任，懷疑，敗壞...的名聲
His corrupt activities were a discredit to the Senate.
Some of Freud's theories have now been discredited.
credulous  a 輕信他人的，易受騙的  /  credulity  n
Quack doctors charm money out of the pockets of credulous health-hungry citizens.
incredulous  a 不輕信的（in不+credulous輕信的→不輕信的）/  incredulity  n
She shot him an incredulous look.

6. fid = trust, faith, 表示“相信，信念”
拉丁文fidere, fides
fidelity  n 堅貞，忠心，(與原物的)逼真度（fid+elity表示性質）
His fidelity to the company over 25 years has earned him raises and promotions.
hi-fi speakers  (hi-fi = high fideality)
infidelity  n 不信教，（夫妻之間）不貞，不忠實
Marital infidelity is the major cause of most divorces.
confide  v 吐露（con全部+fide→全部相信→吐露真情）
He confided his troubles to a bosom friend.
confidant  n 知心朋友（confide吐露+ant人→可以吐露真情的人）
How can we get a confidant in this snobbish practical society?
confident  a 自信的（con+fid+ent） /  confidence  n
The Prime Minister appeared relaxed and confident of winning an overall majority.
confidential  a 機密的（confident+ial→被相信的人才會知道→機密的）
The information will be regarded as strictly confidential.
diffident  a 自卑的，膽怯的（dif不+fid+ent→不自信）
Helen was diffident and introvert.
perfidy  n 不忠實，背叛（per假+fidy→假相信→不忠誠） /  perfidious  a
As devotion unites lovers,so perfidy estranges friends.
affidavit  n 口供書，宣誓書（af一再+fid+avit表名詞→一再聲明相信→宣誓書）
The affidavit was formally read to the court.

7. lat = bring out, 表示“拿出,帶出”
拉丁文latum
translate  v 翻譯，轉換（trans轉移+late拿出→轉成其他語言再拿出→翻譯）
Please translate this article from Chinese into English.
It takes determination and all-out efforts to translate ideas into action.
collate  v 校對，核對（col一起+late→[把兩者]放在一起→校對）/ collation  n
Collate a new edition with an earlier one.
elate  v 使興高采烈（e出+late→拿出情緒→高興） /  elated  a
He was elated at the prospect of promotion.
elation  n 興高采烈，得意洋洋（elate+ion）
They were filled with elation and amazement for the results.
dilate  v 膨脹，擴大（di分開+late→帶開→擴大）
Exercise dilates blood vessels on the surface of the brain.
ventilate  v 通風   /  ventilation  n  /  ventilator  n 通風裝置
You can ventilate a room by opening windows.