A student’s vocabulary quickly increases once he/she understands the meaning of prefixes and suffixes.
Prefix: letters added to a word to form a new word that changes the meaning. There are more than 50 common prefixes in the English language, including dis-, ex-, in-, un-, post-, d, pre-, re-, and others. The two most common prefixes are “un” and “re.”
Suffix: letters that are added after a word to change its meaning. More than 20 common suffixes in the English language, including -er and -or, -ful, -less, -ment, -ness, -y, and others. The most common suffixes in English are -ed, es-, -ing, and -ly.