一个英语问题阐述“en”、“joy”、“enjoy”三者之间的关系

en为前缀.
这样的词还有enclose.enable
enslave,enrich
joy
KK:[]
DJ:[]
n.
1.欢乐,高兴[U]
Success brought him joy.
成功给他带来喜悦.
2.乐事;乐趣[C]
On a hot day,a cool swim is a joy.
大热天来次凉快的游泳是件乐事.
3.(常用于疑问句和否定句)【英】【口】成功;满意[U]
vi.
1.高兴,欣喜[(+in)][+to-v]
enjoy
KK:[]
DJ:[]
vt.
1.欣赏;享受;喜爱[+v-ing]
I enjoyed reading these books very much.
我很喜欢读这些书.
Tom doesn't enjoy going to school.
汤姆不喜欢上学.
I very much enjoyed the party.
我非常喜欢这次聚会.
I enjoy songs such as this one.
我欣赏像这首一样的歌.
2.【书】享有(利益、权利、声誉等)
We enjoy free medical care.
我们享受免费医疗.
I enjoy good health.
我身体很健康.
3.使过得快活;使得到乐趣[+oneself]
Are you enjoying yourself?
你玩得高兴吗?

en+joy=enjoy!!