ex：preface- A preliminary introducing a book and is usually written by the author.
predict-To foretell something.
coll-：gether；collect
ex：collaborate- cooperate in an effort
de-： away from
ex：despondent-overwhelmed with sadness
mor- would die
ex：mortal
fin-：final
ex：finish
bell：negative,means war
ann-、enn-：year
ex：annual、anniversary
-ary is a suffix of adjective
ac-：take
ex：acknowledge、access
ambi-：two or more than two
im-：not
-cide：kill
ex：
pesticide：A substance or agent used to kill pests.
genocide：Deliberate killing of a large group of people, especially those of a particular ethnic group or nation.
Volcano is from the Rome of Hephaestus-Vulcan (the blacksmith in Greek immortal)
