Structure of English words

I bought a dictionary for English study. This dictionary name is "Concise Dictionary of Roots for English Words".
-abstract from this dictionary-
Structure of English word : prefix (接頭辞) + root (語根) + suffix (接尾辞)

continue

con(=together共に)
tinu(=hold保持する,keep保つ)
保ち続ける->つながる

prefix|root|suffix
con |tinu |e

English word is analogous with Chinese character.