verb forming prefixes...
 

 
LISTA DE PREFIJOS Y SUFIJOS INGLESES
List of English suffixes
Lista de sufijos ingleses

List of English prefixes
Lista de prefijos ingleses
verb-forming suffixes
formacion de sufijos
verb forming prefixes...
An English word can be divided into three parts: a prefix, a stem, and a suffix. Pre- means 'before. A prefix, therefore, is what comes before the stem. Consider, as an example, the prefix de- (meaning 'reduce' or 'reverse') in a word like demagnetize (meaning 'to deprive of magnetism'). A suffix is what is attached to the end of the stem. Conside, as an example, the suffix -er (meaning 'someone who') in programmer ('a person who programmes').

Suffixes change the word from one part of speech to another. For example, -ly added to the adjective quick gives the adverb quickly. Prefixes, on the other hand, usually change the meaning of the word. For example, un- changes a word to the negative. unmagnetizable means 'not capable of being magnetized'.

Let us now consider some prefixes, their usual meanings, and how they change the meanings of English words.
Part 1: prefixes

Prefixes:

Negative & positive

Size

Location

Time & order

Number

un-

semi-

inter-

pre-

mono-

non-

mini-

super-

ante-

bi-

in-

micro-

trans-

fore-

hex-

dis-

ex-

post-

oct-

re-

extra-

multi-

peri-

Study these tables. Try and find additional examples using your dictionary:

1. Negative and positive prefixes:

Prefix
Meaning
Examples

Negative:

un-

not

unmagnetized

in-

not

incomplete

im-

not

impossible

il-

not

illegal

ir-

not

irregular, irrelevant

non-

not connected with

non-programmable

mis-

bad, wrong
misdirect

mal-

bad, wrong
malfunction

dis-

opposite feeling

disagree

dis-

opposite action
disconnect

anti-

against

antiglare, antistatic

de-

reduce, reverse
demagnetize, decode


under-

too little
underestimate

Positive:

re-

do again
reorganize

over-

too much

overload

2. Prefixes of size:

Prefix
Meaning
Examples

semi-

half, partly
semiconductor

equi-

equal

equidistant

mini-

small

minicomputer

micro-

very small
microcomputer, microscopic

macro-

large, great
macroeconomics

mega-

large, great
megabyte

3. Prefixes of location:

Prefix
Meaning
Examples

inter-

between, among
interface, interactive

super-

over

supersonic

trans-

across

transmit, transfer

ex-

out

exclude, extrinsic

extra-

beyond

extraordinary

sub-
under
subschema, subtraction

infra-
below
infra-red

peri-
around
peripheral, periscope

4. Prefixes of time and order:

Prefix
Meaning
Examples

ante-

before

antecedent

pre-

before

prefix, preceding, precedent

prime-

first

primary, primitive

post-

after

postdated, post-natal

retro-

backward

retrograde, retroactive

5. Prefixes of numbers:

Prefix
Meaning
Examples

semi-

half

semicircle

mono-

one

monochromatic

bi-

two

binary

tri-

three

triangle

quad-

four

quadruple

penta-
five
pentagon

hex-
six
hexadecimal

sept(em)-
seven
September

oct-
eight
octal

dec-
ten
decimal


multi-
many
multiplexor, multicoloured

6. Other prefixes:


Prefix
Meaning
Examples
pro-

before, in advance, forward

programme, progress, procreation

auto-

self

automatic

co-

together with
co-ordinate, co-operate

con-

together with
connect

Exercises using prefixes:1|2|3|4

Part 2: suffixes

We have already seen how prefixes can change the meaning of a word. Let us now consider some suffixes, their usual meanings, and how they change the meanings of English words:

Suffixes

Nouns

Verbs

Adjectives

Adverbs

-ance

-ize

-able

-ly

-ence

-ate

-ible

-or

-fy

-less

-er

-en

-ic

-ist

-ify

-ical

-ish

-ive

Study these tables. Try and find additional examples using your dictionary:

1. Noun-forming suffixes:

Suffix

Meaning

Examples

-ance

state

performance

-ence

quality of
independence

-er, -or
a person who
a thing which

programmer, operator, biographer
compiler, accumulator, processor, calculator



-ist, -yst
a person who

analyst, typist

-ian

pertaining to
electrician

-tion, -ation
the act of

compilation

-ness

condition of
readiness, cleanliness, happiness

-ion

action/state

conversion

-ing

activity

multiplexing

-ment

state, action
measurement, requirement

-ity

state, quality
electricity

-ism

condition/state

magnetism



-dom

domain/condition

freedom

-ship

condition/state

relationship, partnership

2. Verb-forming suffixes:

Suffix
Meaning
Examples

-ize/-ise

to make
computerize

-ate

automate, activate, calculate

-ify
simplify

-en

harden, widen, lengthen, shorten

3. Adverb-forming suffix:

Suffix
Meaning
Examples

-ly

in the manner of
electronically, logically, comparably, slowly, quickly, automatically, carefully

4. Adjective-forming suffixes:

Suffix

Meaning

Examples

-al

having the quality of

computational, logical

-ar

circular, rectangular, cellular, regular

-ic

magnetic, automatic



-ical

electrical

-able


capable of being

comparable
-ble
divisible

-ous
like, full of
dangerous, insiduous, miraculous

-ful

characterized by
helpful, careful


-less
without
careless, meaningless

-ish
like
yellowish

-ed

having the quality of

computed, processed

-ive

interactive