精選寫作用字 (字源解析) 
1. gress = go, walk, 表示“行走”
拉丁文gradi, gradus
aggression  n 侵略,攻擊(ag加強語氣→gress+ion→用力走進去→侵略)
The raid was an unjustifiable act of aggression.
aggressive  a 侵略的,好鬥的,進取的(ag+gress+ive)/ aggressor  n
Aggressive behavior is a sign of emotional distress.
congress  n 國會,代表大會(con一起+gress→走在一起共聚一堂→代表大會)
Congress is the legislative branch of the U.S. government.
digress  v 離題(di偏離+gress→走偏離→離題)/ digression  n
The meeting digressed from the subject under discussion.
progress  n v 進步,進行(pro向前+gress→向前走→前進)/ progressive  a
The two countries are making steady progress towards a peace settlement.
transgress  v 踰越,違法(trans橫越+gress→橫越走過界→違法)/ transgression  n
For two millennia, exogamy was a major transgression for Jews.
 
regress  v  倒退,退步(re向後+gress→倒退)/ regression  n
retrogress  v 倒退,退步(retro向後+gress→倒退)/ retrogression  n
Excessive exposure to TV and the Internet can cause regression in a pupil's 
learning process.
 
2. ced, ceed, cess = go, 表示“行走,前進”
   拉丁文cedere
cede  v 割讓,放棄(cede 走→走開→割讓)/ cession  n
Spain ceded the Philippines to the United States.
accede  v 答應,繼承(王位)(ac+cede→和別人走在一起→答應)
The authorities did not accede to the protesters' demands.
antecede  v 先行,先於(ante前+cede→走在前面→先行)
antecedent  a 先行的,以前的 n前例,前事,(文法)先行詞
We shall first look briefly at the historical antecedents of this theory.
ancestor  n 祖先,祖宗(an=ante + cest=cess + or→走在前面的人→祖先)
There are many countries in the world having the custom of worshipping ancestors or national founders.
 
concede  v 承認,讓步 (con一起+cede→一起去→互相禮讓)/ concession  n
The army defended the capital but were finally obliged to concede defeat.
 
intercede  v 調解,仲裁(inter在…中間+cede→在中間遊走→調解)/ intercession n
Their argument probably would have become violent if no one had interceded.
precede  v 在先,優於(pre預先+cede→預先走→優於)
Volcanic eruptions are usually preceded by earthquakes.
precedent  n 先例,慣例(precede+ent→預先走的東西→先例)
UN involvement in the country's affairs would set a dangerous precedent.
procedure  n 程序(pro在前+ced+ure→必須在前面走完→程序)
What's the procedure for applying for a visa?
recede  v 後退,降低,減弱(re往回+cede→向後走→後退)
His footsteps receded down the corridor.
 
recession  n 後退,經濟不景氣
During the economic recession the factory terminated a large number of workers.
 
recess  n 休息,深處(+es)(re回+cess→走回去→休息)
The court is in recess.
In the recesses of his heart lie remorse and guilt.
secede  v 脫離,退出(se 分開+cede→分開走→脫離)
Singapore seceded from the Federation of Malaysia and became an independent sovereign state.
excess  n 過度,過剩 (ex向外+cess→向外走→過度)/ excessive  a
The car reached speeds in excess of 100 miles per hour.
proceed  v 繼續進行,前進(pro 向前+ceed→向前走→前進)
After everyone was seated the chairman proceeded to announce his plan.
 
proceeds  n 收益,淨利(proceed+s)
Proceeds from the fund-raising event will go directly to charity.
process  n 過程 v 加工,處理
Two million workers are employed processing goods for electronic firms.
access  n 接近,入口
accessible  a 能接近的,可進去的 /  inaccessible  a 難以接近的
Access to the papers is restricted to senior management.
The remote mountainous area is accessible only by helicopter.
succeed  v 成功,繼續,繼承(suc隨後+ceed→隨後跟上繼續做→成功)
success  n 成功,勝利 /  successful  a
Elizabeth Ⅱ succeeded George VI as the English sovereign.
The company has been a major success story.
succession  n 接連發生,一系列  /  successive  a 連續的
A succession of military defeats weakened the aggressor.
 
3. vad, vas = go, 表示“走”
evade  v 逃避(e出+vade→走出去→逃避)/ evasion  n  / evasive  a
The minister evaded the question and left in haste.
invade  v 侵略(in進+vad+走→走進去→侵略)/ invasion  n  / invasive  a
The seaside town was invaded by a crowd of tourists.
pervade  v 蔓延,普及(per全部+vad+e 走→全部走遍→蔓延)/ pervasion  n
pervasive  a 普及的,滲透的
The spicy smell pervaded the kitchen.
Involuntary unemployment is pervasive in times of an economic downturn.
 
4. vag, vagr = wander, 表示“漫遊”
vagary  n 幻想,變化無常(vag+ary→思想漫遊→幻想)
A designer should be sensitive to the vagaries of fashion.
 
vagrant  a 流浪的,遊移不定的 n 流浪漢(vagr+ant→漫遊的→流浪的)
Unconditional love and devotion still cannot settle the vagrant heart of her lover.
vagabond  n 流浪漢(vaga+bond傾向於…的→傾向於流浪的人)
The vagabonds were banished from the train station.
extravagant  a奢侈的,浪費的(extra過度+vag+ant...的→走得過份→奢侈的)
Her Aunt Sallie gave her an uncharacteristically extravagant gift.
 
vague  a 含糊的,模糊的(vag+ue→漫遊而思想不集中→含糊的)
Democratic leaders under election pressure tend to respond with vague
    promises of action.