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For me, words are a form of action, capable of influencing change.
Ingrid Bengis
1944 – , American author

Vocabulary and spelling series

American spelling: prefixes

Here are some spelling rules for applying prefixes to root words:


Words have been categorized in grammar on how they are used, or as parts of speech:

verb, noun, pronoun, adjective, adverb, preposition, conjunction, and interjection.

Words also have "roots" which convey their basic meaning.
Prefixes are groups of letters (affixes!) placed before a root word to form a new word, change its part of speech, and/or modify its meaning.

For example:

Prefix

Root

New word

Meaning...

ante

room
(noun)

anteroom(noun)

a room that leads to a larger one; waiting room

auto

biography
(noun)

autobiography (noun)

a self-written biography.

trans

national)
(adjective)

transnational
(adjective)

across nations.

un

happy
(adjective)

unhappy
(adjective)

a "not" happy state

un

scripted
(adjective)

unscripted
(adjective)

not written before acted or performed; adlibbed

pre

scripted
(adjective)

prescripted
(adjective)

established as a rule; established as a rule

mis

spell
(verb)

misspell
(verb)

to not spell correctly!

anti

clockwise
(adverb,
adjective)

anticlockwise
(adverb,
adjective)

to rotate in the opposite direction of the hands of a clock

re

consider

reconsider

to review or consider again

 

Vocabulary and spelling guides

Transitional words & phrases | More transitions | Transitional word game |
Essay terms and directives | Modifiers & commas | Plurals |
Spelling rules & exercises | Common misspelled words |
There - They're - Their | Too - Two - To | "Y" with suffixes |
Prefixes and root words | Suffixes and silent "e" |
Mapping vocabulary | Picturing vocabulary | American alphabet recited