A base or root word is a word in its simplest form. A
base word has nothing added to it.
Examples:
Do
Heat
Write
Read
Pack
Root Words
Pick out the root words.
Played
Running
Reheat
Quickly
Unhappy
Prefixes and
suffixes change
the meaning of a
word.
A prefix is a word part
added to the beginning of
a root word.
Examples:
Un + happy= unhappy
Re + do = redo
Prefixes
• The prefix re means
again.
• Reread means to
read again.
• Rewrite means to
write again.
• What does reheat
mean?
• The prefix un means
not or the opposite of.
• Uncomfortable means
not comfortable.
• Unpack means the
opposite of pack.
• What does unclear
mean?
A suffix is a word part
added to the end of a root
word.
Examples:
Wonder + ful= wonderful
Happy + ness= happiness
• The suffix ly means in
a certain way.
• Quickly means in a
quick way.
• Loudly means in a
loud way.
• What does suddenly
mean?
• The suffix ful means
full of.
• Colorful means full of
color.
• Playful means full of
play.
• What does thankful
mean?
Prefixes We
Know
Examples
im- not
improper
in- not
incomplete
bi- two
bicycle
non- not
nonstop
dis- not or
disagree
opposite of
Suffixes We
Know
Examples
-er one who
farmer
-or one who
actor
-less without
useless
-able, -ible can
buildable
be
reversible
Randy’s bike tire was flat. He
found the pump because
the garage was in order.
“There is hope,” said Randy.
“I’ll make it to the soccer
game on time.”
Randy’s bike tire was
flat. He couldn’t find the
pump because the garage
was in disorder. “It’s
hopeless,” said Randy.
“I’ll never make it to the
soccer game on time.”