-ics = 某种学问,关于,有关

aerobics

aesthetics

athletics

ceramics

ethics

civics

demographics

diagnostics

dynamics

electronics

economics

genetics

gymnastics

linguistics

logistics

logics

mathmatics

metaphysics

optics

physics

poetics

robotics

semantics

statistics

politics

-ian = 人或...的

politician

agrarian

albanian

algerian

amphibian

arabian

armenian

asian

australian

austrian

authoritarian

avian

av = bird

barbarian

belgian

bohemian

bosnian

brazilian

carlifornian

cambodian

canadian

caucasian

christian

civilian

clinician

colombian

comedian

comedy

croation

custodian

darwinian

dietitian

iranian

italian

jordanian

lesbian

libertarian

librarian

lithuanian

magician

malaysian

mammalian

martian

mathematician

median

musician

newtonian

musician

nigerian

norwegian

serbian

egalitarian

egyptian

electrician

equestrian

ethiopian

freudian

georgian

guardian

haitian

hawaiian

historian

humanitarian

hungarian

indian

indonesian

obstetrician

persian

peruvian

physician

politician

prussian

riparian

romanian

russian

scandinavian

sectarian

vegetarian

venetian

veterinarian

victorian

utopian

utilitarian

totalitarian

theologian

technician

syrian

statistician

sicilian

siberian

-itude = 度,状态

attitude

attitudinal

apititude

altitude

amplitude

gratitude

longitude

longitudinal

latitude

magnitude

servitude

solitude

interpret

interpreter

vt&vi.

interpretation

n.

interpretive

idea

ideal

adj. idea + al

  1. the ideal candidate

ideally

adv.

  1. an ideally suited couple.

idealism

n.

idealist

n.

  1. hopelessly idealist

idealistic

adj.

idealize

vt.

idealized

adj.

idol

n.

idolize

vt.

  1. idolize their kids.
  2. a pop star idolized by millions of fans.

isol- = isle

isolate

vt.

isolated

adj.

isolation

n.

isolationist

n.adj.

im- = to copy; imit- = to copy, portray

image

n.

imaging

n.

imagery

n.

imagine

vt.

imagine

vt.

imagined

adj.

imaginable

adj.

unimaginable

adj.

imaginary

adj.

imagination

n.

imaginative

adj.

imitate

vt. im- + -itate

imitation

n.adj.

emulate

vt. em- = im + ul + ate

infra-, infer- = under, among

underage

adj.

underbrush

n.
undergrowth

underclass

n.

underdeveloped

adj.

underdog

n.
top dog

underestimate

vt.

overestimate

vt.

underfoot

undergo

vt. under + go

underlie

vt.

underlying

adj.

undermine

vt.

underneath

prep.adv.n

underpants

n.

underpin

vt.

underpinning

vt.

undersea

adj.

undersecretary

n.

underside

n.

undertake

vt.

undertaking

n.

undertone

n.

overtone

n.

undercurrent

n.

underway

adj.

underwear

n.

underworld

n.

underwrite

vt.

underwriter

n.

underwriting

n.

infrared

adj. infra- = under + red

inferno

n.

exteriro

n. ex- = outside + t + -erior

external

adj.

internal

adj.

externalize

vt.

externality

n.

exotic

adj.

exodus

n. ex- = out + od- = way,road + -us

exonerate

vt. ex- = out + -oner=onus=burden + ate

onerous

adj. oner- = burden + -ous

exit

n.vt.vi

exile

n.vt.

intern

n.vt.

internship

n.

internal

adj.

internalize

vt.

internist

n.

internment

n.

interagency

adj.

Inter-American

adj.

interchange

n.vt.

interchangeable

adj.

intercom

n.

interconnection

n.

interfaith

adj.

intergovernmental

adj.

interim

adj.

interlocking

adj.

interlocutor

n. inter- = between + -locut- = -logu

international

adj.n

internationally

adv.

internet

n.

interpersonal

adj.

interracial

adj.

interrelated

adj.

interrelationship

intersperse

vt. inter + -spers= to scatter

intertwine

vi.vt.

interval

n. inter- = between + -val = wall

interweave

vt. inter- + weave