What is an “Affix?”. An “Affix” is a letter or letters added to a root word to change it’s meaning. Prefix and suffix are terms used to further describe an affix. In other words “Affix” is a word used to describe both a “Prefix and Suffix”. A “Prefix” is placed before a word. A “Suffix” is placed after. New words are created from root words. Many words have both a “Prefix and Suffix”. There are many forms and specific reasons for adding letters to words. The main idea is to create other words with different definitions in English. Below are a just few examples. Check your dictionary for prefixes and suffixes to better understand this subject.
Common Prefix examples: dis-, ir-, un-, re-.
(Dis)agree is the opposite of “Agree”. It is defined as “Not”.
(Ir)responsible is the opposite of “Responsible”. It is defined as “Not”.
(Un)friendly is the opposite of “Friendly”. It is defined as “Not”.
(Re)turn means “Go back” or “Take back”. It is defined as “Again”.
Common Suffix examples: -ed, -ing, -ly, -es.
Cook(ed) The verb to cook. Use for adjectives and past tense verbs.
Runn(ing) The verb to run. Use for gerunds, adjectives and continuous tenses.
Quick(ly) Quickly is an adverb. Use for adverbs and adjectives.
Box(es) Box is a noun and verb. Use for plural nouns and actions.
While there are many affixes in English, the above prefixes and suffixes are regarded as the most common in the English language. The above list is incomplete. Refer to your grammar resource for further explanations. Have fun with the subject of “Affixes”.