-trib = give，给

tribe

tribal

tribesman

tribute

tributary

tribune

tribunal

retribution

contribute

contribution

contributing

contributor

attribute

attribution

attributable

distribute

distribution

distributor

distributed

redistribute

-tain = 1. hold, 维持, 支持 2. 保留 3. 持有，拿着

maintain

maintenance

sustain

sustainable

sustainability

unsustainable

sustained

sustenance

retain

retainer

retention

detain

detainee

hold

holder

holding

holdout

household

obtain

contain

container

containment

continue

continued

continuing

continuity

continuous

continuously

continual

continually

continuation

continuum

pertain

pertaining

pertinent

entertain

entertainer

entertaining

entertainment

amuse

amusement

recreation

refresh

attain

attainable

attainment

unattainable

abstain

-tact, -tag, -teg, -tang = touch

contact

contagion

contagious

contaminate

contamination

contaminant

intact

tact

tactic

tactical

tactile

tangible

intangible

integral

integrate

integrated

integration

integrative

integrity

disintegrate

disintegration

test

testing

adj.

  1. the most testing time
  2. product testing

testify

vt&vi test + ify

  1. testify for sb.
  2. testify against sb.
  3. there are several witnesses who will testify for the defence.

testimony

n. testi=testify + mony

  1. a sworn testimony

testament

n.

  1. last will and testament

testimonial

n. testi=testify + monial

  1. a glowing testimonial
  2. a testimonial dinner

-trude = to push, press, thrust, 推动，按压，刺

threat

n.

  1. under threat
  2. be/pose a threat to sth.

threaten

vt&vi threat + en 使动词

deep -> deepen
sharp -> sharpen

  1. threaten marine life

threatened

adj.

threatening

adj.

life-threatening

thrust

vt&vi&n

  1. thrust him into the back of a jeep.
  2. thrust force.

intrude

vi. in + trude

intruder

n.

intrusion

n. intrud=intrus + ion

intrusive

adj.

protrude

vt. pro + trud + e

  1. protrude from the water.

tempt

vt. tempt= try out

  1. be tempted by sth.

tempting

adj.

  1. turn down the tempting offer of the Palm Beach trip.
  2. the temptingly low price.

temptation

n.

  1. resist temptation
  2. to give way to/yield to temptation.

attempt

vt. at=ad=to + tempt=try out

  1. in an attempt to
  2. attempt to do sth.
  3. attempted murder.

attempted

  1. a case of attempted murder.

taunt

vt.

  1. taunt a disabled man.
  2. suffer racist taunts.

termin =limit, end, boundary line

term

vt.n

  1. presidential term
  2. the next term.
  3. technical term.
  4. in the long term/in the short term/in the medium term
  5. in terms of …
  6. on good terms/on friendlly terms with
  7. under the terms of the agreement

terminology

n.

  1. environmental terminology
  2. scientific terminology
  3. medical terminology

terminal

adj.n termin=end + al

  1. terminal building
  2. a railway/bus/ferry terminal
  3. a terminal patient

terminally

adv.

  1. terminally ill

terminate

vt&vi

  1. terminate the conversation
  2. terminate the pregnancy

termination

n.

interminable

adj. in=not + termin + able

  1. an interminable speech/wait/discussion
  2. an interminable meeting

eternal

adj. e=ex + tern=term= to end + al

  1. the promise of eternal life in heaven
  2. eternal arguments.

determine

vt. de + termin + e

  1. determine the cooking time
  2. determine what really happened

determination

n.

determined

adj.

  1. a determined effort to stop smoking

determinant

n.

indeterminate

adj. in=not + determin + ate(adj)

  1. carry on for an inderterminate period.

predetermined

adj.

  1. a predetermined time.

determinism

n.

  1. historical determinism

exterminate

vt. ex=out + termin + ate
=wipe out

  1. exterminate the rats.
  2. exterminate weed.

-tempo- = time, earthly

contemporary

n.adj con =with, together + tempor=time + ary

  1. contemporary fiction/music/dance/art

temporary

adj. tempor + ary

  1. temporary relief from pain
  2. temporary accommodation

temporarily

adv.

  1. migrate abroad either temporarily or permanently
  2. temporarily drop behind.

temporal

adj. temp=earthly,time + or + al

  1. a universe which has spatial and temporal dimensions.

tempo

n. temp + o
=pace

  1. a slow/fast tempo
  2. the increasing tempo of life

temper 脾气，性情，调整，缓和 = 以适当比例混合

temperature

n.

  1. to take sb’s temperature
  2. raise/lower the temperature

temper

n.vt.

  1. lose one’s temper
  2. to fly into a temper
  3. customers tempered their spending.

temperament

n.

  1. to have an artistic temperament
  2. a horse with a excellent temperament

temperamental

adj.

  1. temperamental and critical

temperate

adj.

  1. a temperate climates
  2. temperate latitudes.

tamper

vi.

  1. tamper with the evidence
  2. tamper with the brakes of my car.

tem-, tom-, -tomy = to cut

temple

n.

  1. temple of heaven
  2. temple fair

contemplate

vt. con + templ=temple + ate

  1. contemplate his future
  2. contemplate his hands.

contemplation

n.

contemplative

adj.

  1. a quiet, contemplative sort of child

template

n. tem=cut + plate

  1. layout templates

anatomy

n. ana=up + tomy=cut

  1. a course in anatomy
  2. an anatomy of the current recession.

anatomical

adj.

  1. minute anatomical differences between insects.

atom

n. a=not + tom=cut

  1. the splitting of the atom.

atomic

adj.

  1. atomic structure
  2. atomic energy/power
  3. the atomic bomb.

dichotomy

n. dicho=di=in two + tomy=cut

dichotomous

adj.

epitome

n. epi- = among + tome = to cut

  1. clothes that are the epitome of good taste.

=embodiment, abstract, brief summary

tome

n.

terrible

adj. terr=trem=tremble + ible

  1. a terrible nightmare.

terribly

adv.

  1. suffer terribly
  2. terribly sorry.

terror

n. terr= fill with fear, frighten + or

  1. shake with terror.
  2. the war on the terror.

terrorism

n.

terrorist

n.

terrify

vt

  1. The electric atmosphere both terrified and thrilled him.

terrifying

adj.

terrified

adj.

terrorize

vt.

terrific

adj.

  1. be terrifically bright.
  2. look terrific.
  3. What a terrific idea.

deter

vt. de=away + ter=terr

  1. deter criminals from carring guns.

deterrent

n.

  1. nuclear deterent

deterrence

n.

undeterred

adj.

  1. He was undeterred by these disasters.

horror

n.adj.

  1. I felt numb with horror.
  2. a horror film.

horrible

adj.

  1. a horrible scene.
  2. horrible weather

horribly

adv.

  1. a two-year-old boy was horribly murdered.

horrify

vt.

horrified

adj.

horrific

adj.

horrifying

adj.

  1. a horrifying sight/experience

horrid

adj.

  1. what a horrid smell.

horrendous

adj.

shock

n.vt.vi

  1. The little boy was speechless with shock.

shocked

adj.

shocking

adj.

shockingly

adv.

aftershock

n.

ski

n.vi.adj

  1. a pair of skis.
  2. ski resort

skier

n.

skiing

n.

  1. downhill/cross-country skiiing.

skid

vt.n

  1. skid to a halt just in time.

ship

vt.n

  1. a sailing/cargo/cruise ship.
  2. ship sb off.

shipment

n.

  1. shipment costs.

shipping

n.

  1. a shipping company.

warship

n.

battleship

n.

shipyard

n.

shipwreck

n.vt

starship

n

skip

vt&vi&n

  1. skip rope

skiff

n

skipper

n.vt

  1. the skipper of an english fishing boat.

scuttle

vi.vt.n

sheath

n.

  1. the sheath around an electric cable.

schizophrenia

n. schizo = to split + phren=heart, mind + ia.

schism

n.

shoddy

adj.

  1. shoddy goods.

-tract = draw

drag

vt.n

traction

n.

tractor

n.

  1. walking tractor.
  2. wheeled tractor.

attract

vt. at=ad=to + tract

  1. attract investment

attracting

vt.

attraction

n.

  1. an important tourist attraction.

attractive

adj.

attractiveness

n.

unattractive

adj.

abstract

adj.n abs=away + tract

  1. abstract thinking

abstraction

n.

  1. water abstraction from rivers.

contract

vt&vi&n con + tract

contracting

adj.

  1. a contracting market.
  2. contracting party.

contraction

n.

  1. the sudden contraction of the markets.

contractor

n.

  1. the building contractor.

contractual

adj.

subcontractor

n.

distract

vt. dis=away + tract

  1. distract him from his homework.

distraction

n.

distraught

adj.

extract

vt. ex=out + tract

extraction

n.

subtract

vt.

detract

vt.

detractor

n.

  1. silence many of his detractors.

protracted

adj.

retract

vt&vi

train

vt.n

trained

adj.

trainee

n.

trainer

n.

  1. a pair of trainers
  2. a racehorse trainer

training

n.

retrain

vt&vi

  1. retrain as a teacher

untrained

adj.

retraining

n.

treat

vt.n

  1. treat it as a case of attempted murder.
  2. treat someone to ice cream.

treatment

n.

  1. medical treatment.
  2. chemical treatment plant.

treatise

n.

treaty

n.

  1. a peace treaty.

retreat

vi.n

  1. retreat after suffering heavy losses.

untreated

adj.

  1. untreated sewage.

intractable

adj.

mistreat

vt.

treated

adj.

  1. treated water.

mistreatment

n.

treatable

adj.

  1. a treatable condition.

retire

vi

  1. retire as editor of the magazine.
  2. retire hurt.
  3. retire to his study.

retired

adj.

  1. a retired doctor.

retiree

n.

  1. enterprise retiree.

retirement

n.

  1. retirement age
  2. a long and happy retirement.

retiring

adj.

  1. a retiring little girl.

tirade

n.

  1. a tirade against sb.

portray

vt. por=pro + tray=draw

  1. portray the king.

portrayal

n.

  1. portrayal of a prison guard.

portrait

n.

  1. family portrait.

portraiture

n. portrait + ure.

  1. portraiture right.

trace

vi.n

  1. trace back to.
  2. trace a to b.
  3. disappear without a trace.

retrace

vt.

  1. retrace the epic voyage.

tracer

n.

trail

vt&vi&n

trailer

n.

trailhead

n.

trailing

adj.

  1. trailing ivy.

track

vt.n

  1. keep track of.
  2. go off the track.
  3. on track.
  4. on the right/wrong track.
  5. track and field.

tracking

n.

trek

vi.n

racetrack

n.

  1. the sound of cars roaring around a racetrack.

tracker

n.

  1. tracker device.

backtrack

vi

  1. The committee backtracked by scrapping the controversial bonus system.

tract

n.

  1. the digestive tract
  2. vast tracts of forest.

terr = earth, land

territory

n.

territorial

adj.

terrain

n.

terrace

n.

Mediterranean

n. medi + terr + anean

terrestrial

adj.

extraterrestrial

adj.n

subterranean

adj.

torrent

n.

thirsty

adj.

toast

vt.n

toasted

adj.

toaster

n.

ten --> -teen , -dec, decim

ten

tenth

n.

ten-year-old

teen

n.adj.

thirteen

thirteenth

teenage

adj.

teenaged

adj.

teenager

n.

dean

n.

decade

n.

decimate

vt.

hundred, cent

hundred

century

n.

centennial

n.adj.

centuries-old

adj.

turn-of-the-century

n.

quarter-century

n.

percentage

n.

percentile

n.

top

n.adj.vt.

topic

n.

theme

n.

thematic

adj.

topical

adj.

topping

n.

topple

vi.vt. top + -le

topless

adj.adv.

top-down

adj.

rooftop

n.

tabletop

n.

top-notch

adj. top + notch

top-rated

adj.

topsoil

n.

topography

n.

isotope

n. iso- + top + e

ten- , tend-, tent- = to stretch, thin, string, sinew

thin

adj.adv.vt.

thinly

adv.

tend

vi.

tendency

n.

tendril

n.

tendon

n.

tent

n.

tentacle

n. tent- = tend- + acle

tender

adj.n.vi.vt

tenderly

adv.

tenderness

n.

pretend

vt.adj.

pretense

n.

pretension

n.

pretentious

adj.

bartender

n. bar- + tender

tenderloin

n. tender + loin=腰肉

tenuous

adj. ten +ｕ+ ous

tense

vt.vi.adj.n

intense

adj.

intensely

adv.

intensify

vt.vi

intensity

n.

intensive

adj.

ICU

Intensive Care Unit

labor-intensive

adj.

intensively

adv.

tension

n.vt.

hypertension

n. hyper + tension

intend

vt.

intended

adj.

unintended

adj.

extend

vt.

portend

vt. por- = forth + -tend

extent

n.

extensive

adj.

extensively

adv.

intent

adj.

intently

adv.

intention

n.

well-intentioned

adj.

intentional

adj.

unintentional

adj.

intentionally

adv

unintentionally

adv.

unpretentious

adj.

attend

vt.vi

attendance

n.

attendant

n.adj. at + tend + ant

attendee

n.

attention

n.

ADHD

abbr. attention deficit hyperactivity disorder

inattention

n.

attentive

adj.

attentively

adv.

unattended

adj.

contend

vt.

contender

n.

contention

n.

contentious

adj.

tone

n.

tonal

adj.

tonic

n. ton- = ten- + ic

baritone

n. bari = heavy + tone

tenor

n.adj. ten- + or

intone

vt.

intonation

n.

ten-, tin- = to hold, grasp

content

n.adj.

discontent

n.

contented

adj.

contentment

n.

continent

n.adj. = continue land

continental

adj.n.

incontinence

n.

discontinue

vt.

discontinuity

n.

countenance

n.vt. count = con + ten + ance

detention

n. de-=back + tent + ion

tenet

n.

tenement

n. tene=tenant + ment=apartment

tennis

n.

tenure

n. ten = to hold + ure

tenured

adj.

tenant

n.vt.

lieutenant

n. lieu = place + tenant=holder

tenacity

n. ten + acity

tenacious

adj.

ton-, stun-, ston-, stoun- = thunder

thunder

n.vi.

thunderous

adj.

thunderstorm

n.

tornado

n.

detonate

vt. de- = down + -ton = to thunder

detonation

n.

stun

vt.

stunned

adj.

stunning

adj.

stunningly

adv.

astonish

vt. as- = out + ton = tun + -ish

astonishing

adj.

astonished

adj.

astonishment

n.

astonishingly

adv.

astound

vt.

astounded

adj.

astounding

adj.

tuit-, tut- = guard, protect, supervision --> teach,guid

tuition

n. tuit=teach + ion

tutor

vt.n tut=teach + or(n)

tutoring

n.

tutorial

adj. tutor + i + al

intuition

n. in- + tuit=to look at + ion

intuitive

adj.

tutelage

n. tutel=tutor + age