精選寫作用字 (字源解析) 
1. gen, gener, genit = birth, produce, 表示“出生,產生”
  拉丁文generare
generate  v 產生,發電(gener+ate→產生[電]等)
Tourism generates considerable profits for local communities.
generation  n 產生,一個世代(generate+ion)
The new generation of smartphones has stirred up a craze in the global market. 
generator  n 發電機,生產者(generate+or→產生[電]的東西→發電機)
The hospital has a backup generator in case there is a power failure.
regenerate  v 再生,重生(re再+generate)
Nerve cells have limited ability to regenerate if destroyed.
general  a 一般的 n 將軍(gener+al)
The president spoke in general terms about greater competitiveness.
generalization  n 歸納,通則化(general+ization)
Under close scrutiny, his argument is merely a sweeping generalization 
    based on speculation.
generous  a 慷慨的,豐富的(gener+ous→不斷產生→豐富的)/ generosity  n 
The earthquake-stricken area has received generous donations from all 
    sectors.
degenerate  v a 墮落,衰退(de壞+gener+ate→往壞產生→墮落) 
Lack of consensus made the conference degenerate into a complete fiasco.
 
genuine  a 真正的,真誠的(genu+ine)
This medal is made of genuine gold.
genesis  n 起源,創始(gen+esis表名詞,原指《聖經》中的創世紀)
Like many fundamental problems in science, the genesis of earthquakes 
    is controversial.
genetic  a 基因的,遺傳學的(gen+etic)/ genetics  n 遺傳學
Scientists have used genetic engineering to protect tomatoes against the 
    effects of freezing.
genus  n屬(gen+us)
kingdom界 / phylum門 / class綱 / order目 / family科 / genus屬 / 
    species種
generic  a 一般的,通稱的(gen+eric)
Fine Arts is a generic term for subjects such as painting, music and 
    sculpture.
ingenuous  a 天真的,老實的(in內+genu+ous產生自內心→天真的)
She looked at him with an ingenuous smile.
 
genius  n 天才,天份(geni+us→生出就會→天才)
Thomas Edison was a great genius inventor of the electrical age.
ingenious  a 聰明的,有創造力的(in內+geni+ous天生就有才→聰明的)
Many fish species have ingenious ways of protecting their eggs from predators.
eugenics  n 優生學(eu好+gen+ics→產生好的→優生學)
An example of eugenics would be the attempt to eradicate a harmful recessive gene.
congenial  a 意氣相投的(con一起+gen+ial→產生一起的興趣→意氣相投的)
In this small village he found few people congenial to him.
congenital  a 天生的(con一起+gen+ital→與生俱來→天生的)
He has a congenital heart defect.
progenitor  n 祖先(pro向前+genit+or→向前產生的執行者→祖先)
Schoenberg was a progenitor of modern music.
progeny  n 子孫,後代(pro向前+gen+y→向前產生的結果→子孫)
Genetic characteristics can be passed onto one's progeny.
genial  a 和藹的,愉快的(gen+ial→產生[感情]的→和藹的)
Her genial disposition warms the hearts of people around her.
indigenous  a 土產的,當地的(indi內部+gen+ous→內部產生→土產的)
Blueberries are indigenous to America.
homogeneous  a 同種的,同性質的(homo同+gen+eous)/  homogeneity  n
homogeneous system / product / culture / nature / reaction
heterogeneous  a 不同種的,不同性質的(hetero異+gen+eous) /  heterogeneity  n
heterogeneous system / product / culture / nature / reaction
genre  n 類型,流派(藝術類型)
Rock and roll is a popular genre of music.
genteel  a 高雅的,上流的(gent+eel→出身好的→高雅的,gentle的變體)
She came from a genteel, aristocratic family.
engender  v 產生(en使+gender 產生→使產生)
The meeting engendered several quarrels.
 
hydrogen  n 氫 (hydro水)
oxygen  n 氧 (oxy氧) 
nitrogen  n 氮 (nitro = nitre 硝酸鈉)
 
 
2. habit, hibit = dwell, 表示“拿,擁有,居住”
拉丁文habere
habit  n 習慣(居住同一個地方→習慣了)
His cocaine habit ruined him physically and financially.
habituate  v 使習慣於(habit習慣+uate)                  
Wealth habituated him to luxury.
habitual  a 習慣性的(habit+ual)
James took his habitual morning walk around the garden.
habitat  n (動植物)居住地,棲息地(habit+at表示地方→住的地方)
The grassland is an important habitat for many wild flowers.
cohabit  v 同居(co一起+habit→一起住一起)  cohabitant  n 同居者
It seems to be a growing trend to cohabit before marriage.
inhabit  v 居住(in裡面+habit→住裡面→居住) inhabitant  n 住戶,居民
This region is primarily inhabited by nomads.
uninhabited  a 杳無人跡的(un無+inhabit居住+ed →無人居住的)
Nothing can be found on this uninhabited island.
exhibit  v 呈現,展示(ex出+hibit→把擁有物拿出→展示)/ exhibition  n
Her paintings have been exhibited all over the country.
inhibit  v 抑制,防止(in內+hibit→把東西拿在手裡→抑制)/ inhibition  n
Low temperatures inhibited bacteria from developing.
prohibit  v (依法律或規定)禁止(pro向前+hibit→禁止)/ prohibition  n
Smoking is strictly prohibited inside the factory.