This is -er and -est suffixes
These are comparative suffixes, they are used to compare things
For example: big, bigger, biggest
Synthetic Inquiry: Consider the word groups below and write a sentence each for -er and -est to explain what they mean and how they chance the meaning of the base word.
big - bigger - biggest
fast - faster - fastest
cool - cooler - coolest
Word Lists
-er
colder
longer
older
richer
smaller
smoother
sweeter
taller
braver
closer
riper
safer
wider
wiser
-est
coldest
longest
oldest
richest
smallest
smoothest
sweetest
tallest
bravest
closest
ripest
safest
widest
wisest