Prefixes and Suffixes (Unit two)
Prefixes and Suffixes
Affixes are the stems that are used either before or after a root word to change the meaning of a word e.g. un+ happy= unhappy and move+ment = movement
Prefixes and Suffixes
A prefix is a stem that is used before a root word that changes its meaning e.g.
dis+honest= dishonest
A suffix is a stem that is used at the end of a root word that changes its meaning. e.g.
happy+ness= happiness
Prefixes
Negative prefixes (Making Opposite Words/Antonyms
- In 
Insufficient, insane, invalid, inappropriate
- Un 
Unemployment, unproductive, unadvisable, unhappiness
- im 
impolite, improper, imperfect, impious
- ir irregular, irrational, irretrievable, irrevocable 
- anti 
antinational, anticlockwise, antidote, antisocial, antiseptic, antibody
- dis 
disable, disagree, disappear, disappoint, dislike,
- de 
debug, defog, deselect, decode, detoxify
- mis 
Misbehave, miscalculate, misfortune, misfit, misspell, misunderstand,
mislead, misinform
More Prefixes
- Ante-(before) antenatal, anteroom, antedate 
- Circum- (around) circumstance, circumvent, circumnavigate 
- co- (with) co-worker, co-pilot, co-operation 
- em-, en- (cause to, put into) embrace, encode, embed, enclose, engulf 
- epi- (upon, close to, after) epicentre, episcope, epidermis 
- Over ( more than required) overconfident, overwork, overpay, overdue, overact 
- Under ( Less than required) Unerestimate, underweight, underrate, underpay 
- Trans ( across/ to the other side) Transform, transport, transmigrate, transfuse 
- Auto ( self working) automatic, autodebit, autocredit, autostart, autoimmune 
- Pre ( Before) Prepay, Prepone, Prerequisite, Preload 
- Post ( afer) Postpay, Postgraduate, Postpone, postscript 
- Inter (Between / among) Interclass, interschool, interrelations, international 
- Semi ( half) semifinal, semicircle, semiformal, semiconductor 
- Sub ( below/ beneath) submarine, subside, subdue, subsoil 
- Super ( above, beyond) superimpose, supernatural supersede, supervise, superfast 
Suffixes
- acy – (state or quality) democracy, accuracy, lunacy 
- -al – (the action or process of) remedial, denial, trial, criminal 
- -ance, -ence (state or quality of) nuisance, ambience, tolerance 
- -dom (place or state of being) freedom, stardom, boredom 
- -er, -or (person or object that does a specified action) reader, creator, interpreter, inventor, collaborator, teacher 
- -ism (doctrine, belief) Judaism, scepticism, escapism 
- ist (person or object that does a specified action) Geologist, protagonist, sexist, scientist, theorist, communist 
- -ity, -ty (quality of) extremity, validity, enormity 
- -ment (condition) enchantment, argument 
- -ness (state of being) heaviness, highness, sickness 
- -ship (position held) friendship, hardship, internship 
- -sion, -tion (state of being) position, promotion, cohesion 
- -ate (become) mediate, collaborate, create 
- -en (become) sharpen, strengthen, loosen 
- -ify, -fy (make or become) justify, simplify, magnify, satisfy 
- -ise, -ize (become) publicise, synthesise, hypnotise 
Synonym
A synonym is word similar in meaning. e.g. Synonyms of "good" = fine, nice, excellent, acceptable, satisfactory, decent
Remember that English synonyms may not be hundred percent similar. Some similarity too qualifies a word to be considered a synonym.
Antonym
An Antonym is a word that gives opposite meaning. e.g. antonyms of "good" = bad, wicked, unacceptable, indecent, foul
Homonym
Homonyms are distinct words but they have the same form. in other words when a word has two or more meanings, all of them are said to be homonyms. e.g.
Bank = the place where money is deposited.
Bank = the side of a river.
Homophone
Homophones are distinct words but pronounced alike .
two and too.
eight and ate
son and sun
Introduction to dictionary
A dictionary is a compilation of words in alphabetical order to show the different meanings of a word along with its uses, pronunciation and grammar. Since all the words are alphabetically compiled. a reader can easily find the word for which he wants to consult the dictionary.
Thesaurus
A thesaurus is a compilation of words like a dictionary in the terms of the synonyms and antonyms of words. It is very useful in increasing vocabulary.
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