最常用的词根：40 个构建日常英语的希腊和拉丁词根
English can feel like an endless pile of words to memorize. It isn't. A large share of English vocabulary is built from a small set of common root words borrowed from Latin and Greek. Learn one root — say port, "to carry" — and you suddenly see it inside import, export, transport, portable, and airport. The root is the key that unlocks the whole family at once.
This is the list to start with: the 40 most common Greek and Latin roots, the ones with the highest payoff for everyday reading. Every root below links to its full page on Wordiyo, where you can see the complete word family and hear the pronunciation. This is meant to be a home base — bookmark it, and branch out to any root that catches your eye.
How to use this list
Don't try to memorize all 40 at once. Pick one root, look at how its meaning survives inside each example word, then try to guess a new word you've never studied. That small act of decoding — not re-reading — is what makes a root stick. Study a handful a day and the rest of English starts to feel a lot less random.
Roots you use every day
Start here, because you already know these roots — you just didn't know they were roots. They sit inside some of the most ordinary words in English, which makes them the easiest place to feel how the method works.
form — shape, form
- form — the shape something takes
- inform (in + form) — to shape someone's mind with facts
- transform (trans + form) — to change the shape of
- uniform (uni + form) — of one shape; the same throughout
- formula (form) — a fixed shape or pattern for doing something
port — to carry, to bear
- transport (trans + port) — to carry across a distance
- import (in + port) — to carry goods into a country
- export (ex + port) — to carry goods out
- portable (port + able) — able to be carried
- airport (air + port) — a place where air travelers are carried out
spec / spect — to look, to watch
- inspect (in + spect) — to look into carefully
- respect (re + spect) — to look back at with regard
- spectator (spect) — one who looks on; a viewer
- perspective (per + spect) — a way of looking through at something
dict / dic — to say, to speak
- predict (pre + dict) — to say beforehand
- dictionary (dict) — a book of what words say
- contradict (contra + dict) — to speak against
- dictate (dict) — to say aloud for another to write
graph — to write, to draw
- photograph (photo + graph) — a picture drawn with light
- autograph (auto + graph) — one's own name written by hand
- paragraph (para + graph) — a marked-off block of writing
- graphic (graph) — relating to drawing or vivid detail
photo — light
- photo — a picture made by light
- photography (photo + graph) — writing images with light
- photosynthesis (photo + synthesis) — building food from light
phon — sound, voice
- telephone (tele + phon) — sound carried from far away
- microphone (micro + phon) — a device that makes small sounds bigger
- symphony (sym + phon) — sounds sounding together
- phonics (phon) — the method of teaching sounds of letters
Roots of action and motion
These roots power the verbs of English — building, pulling, throwing, leading. They show up constantly, because most of what we talk about is something happening.
struct — to build
- structure (struct) — the way something is built
- construct (con + struct) — to build together
- instruct (in + struct) — to build knowledge into someone
- destruction (de + struct) — the undoing of what was built
tract / tra — to pull, to drag
- attract (at + tract) — to pull toward
- extract (ex + tract) — to pull out
- subtract (sub + tract) — to pull away from below
- tractor (tract) — a machine that pulls
ject — to throw, to cast
- project (pro + ject) — to throw forward
- reject (re + ject) — to throw back
- inject (in + ject) — to throw a fluid inward
- eject (e + ject) — to throw out
duc / duct — to lead, to guide
- conduct (con + duct) — to lead together; to guide
- produce (pro + duc) — to lead forward into being
- educate (e + duc) — to lead a mind out and onward
- introduce (intro + duc) — to lead someone in
miss / mit — to send
- mission (miss) — something one is sent to do
- transmit (trans + mit) — to send across
- submit (sub + mit) — to send oneself under an authority
- dismiss (dis + miss) — to send away
ced / cess — to go, to yield
- proceed (pro + ceed) — to go forward
- exceed (ex + ceed) — to go beyond
- process (pro + cess) — a series of steps that go forward
- recede (re + ced) — to go back
gress — to step, to walk
- progress (pro + gress) — to step forward
- congress (con + gress) — a stepping together; an assembly
- aggressive (ag + gress) — stepping toward; forceful
- regress (re + gress) — to step back
vert / vers — to turn
- reverse (re + vers) — to turn back
- convert (con + vert) — to turn into something else
- universe (uni + vers) — all turned into one whole
- introvert (intro + vert) — one turned inward
rupt — to break, to burst
- erupt (e + rupt) — to burst out
- interrupt (inter + rupt) — to break in between
- corrupt (cor + rupt) — thoroughly broken; dishonest
- bankrupt (bank + rupt) — with one's finances broken
Roots of making, holding and placing
If the last group described movement, this group describes what we do with our hands and minds: make things, hold onto them, and set them in place.
fac / fact — to make, to do
- factory (fact) — a place where things are made
- manufacture (manu + fact) — to make by hand (originally)
- fact (fact) — a thing that was done; something real
- benefit (bene + fic) — a good thing done for someone
pos / pon — to place, to put
- compose (com + pos) — to put together
- position (pos) — where a thing is placed
- deposit (de + pos) — to put down for safekeeping
- expose (ex + pos) — to put out into view
tain / ten — to hold, to keep
- contain (con + tain) — to hold together within
- maintain (main + tain) — to hold in a steady state
- retain (re + tain) — to keep holding
- obtain (ob + tain) — to get hold of
fer — to carry, to bring
- transfer (trans + fer) — to carry across
- offer (of + fer) — to bring forward to someone
- refer (re + fer) — to carry back to a source
- prefer (pre + fer) — to carry one thing before another
script / scrib — to write
- describe (de + scrib) — to write down in detail
- manuscript (manu + script) — something written by hand
- prescription (pre + script) — written orders given in advance
- subscribe (sub + scrib) — to write one's name under
Roots of the senses and mind
These roots are about taking the world in — seeing it, hearing it, reasoning about it, and knowing it.
vis / vid — to see
- vision (vis) — the power of seeing
- visible (vis + ible) — able to be seen
- television (tele + vis) — seeing from far away
- video (vid) — that which is seen
aud / audit — to hear
- audio (audi) — relating to sound and hearing
- audience (audi) — those who come to hear
- auditorium (audit) — a place built for hearing
- audible (aud + ible) — able to be heard
log / logy — word, study of
- logic (log) — reasoning expressed in words
- dialogue (dia + log) — words passing between people
- biology (bio + logy) — the study of life
- apology (apo + log) — words spoken to account for oneself
voc / vok — voice, to call
- vocal (voc) — relating to the voice
- vocabulary (voc) — the stock of words one can call on
- advocate (ad + voc) — to call out in support of
- provoke (pro + vok) — to call forth a reaction
sci — to know
- science (sci) — organized knowledge
- conscious (con + sci) — knowing what is happening
- conscience (con + sci) — inner knowing of right and wrong
- omniscient (omni + sci) — all-knowing
Roots of science and the natural world
A handful of Greek roots carry most of the vocabulary of science and nature — and once you know them, whole textbooks read differently.
bio — life
- biology (bio + logy) — the study of life
- biography (bio + graph) — the written account of a life
- antibiotic (anti + bio) — acting against living microbes
- biosphere (bio + sphere) — the zone of living things
geo — earth, land
- geography (geo + graph) — writing about the earth
- geology (geo + logy) — the study of the earth
- geometry (geo + metr) — measuring the earth
- geothermal (geo + therm) — relating to the earth's heat
therm — heat, warm
- thermometer (therm + meter) — a device measuring heat
- thermal (therm) — relating to heat
- thermostat (therm + stat) — a device that keeps heat steady
- hypothermia (hypo + therm) — a state of too little body heat
chron — time
- chronic (chron) — lasting over a long time
- synchronize (syn + chron) — to make happen at the same time
- chronology (chron + logy) — the order of events in time
- anachronism (ana + chron) — something out of its time
Roots of the human body
Latin and Greek names for the parts of the body run quietly through hundreds of everyday words.
man / manu — hand
- manual (manu) — done by hand
- manage (man) — to handle or direct
- manufacture (manu + fact) — to make by hand
- manipulate (mani + pul) — to handle with skill
ped / pod — foot
- pedal (ped) — a lever worked by the foot
- pedestrian (ped) — one who travels on foot
- biped (bi + ped) — a two-footed creature
- pedestal (ped) — the foot or base of a column
capit / cap — head
- capital (capit) — the head city or chief resource
- captain (capt) — the head of a team or ship
- decapitate (de + capit) — to remove the head
- per capita (capit) — counted per head, per person
cord — heart
- cordial (cord) — warm and heartfelt
- accord (ac + cord) — a meeting of hearts; agreement
- courage (cour + cord) — strength of heart
- discord (dis + cord) — hearts apart; conflict
corp — body
- corpse (corp) — a dead body
- corporation (corp) — a group acting as one body
- corporal (corp) — relating to the body
- incorporate (in + corp) — to take into one body
Roots of space, time and measure
The last group covers where things are, when they happen, and how they compare — the vocabulary of order and quantity.
loc — place
- local (loc) — belonging to a place
- locate (loc) — to find a place
- location (loc) — a particular place
- dislocate (dis + loc) — to move out of place
tempor / temp — time
- temporary (tempor) — lasting only a short time
- contemporary (con + tempor) — of the same time
- tempo (temp) — the pace of something in time
- temporal (tempor) — relating to time
ann / enn — year
- annual (ann) — happening once a year
- anniversary (ann + vers) — the yearly turning of a date
- biennial (bi + enn) — happening every two years
- millennium (mill + enn) — a span of a thousand years
equ — equal, even
- equal (equ) — the same in amount or value
- equator (equ) — the line that divides the earth evenly
- equivalent (equ + val) — equal in worth
- equation (equ) — a statement that two sides are equal
magn / maj — great, large
- magnify (magn + fy) — to make greater in size
- magnificent (magn + fic) — made great; splendid
- magnitude (magn) — greatness of size or importance
- major (maj) — the greater of two
From this list to real fluency
Reading this list once will not move 40 roots into long-term memory. Two things do: spaced retrieval — meeting each root again days later and recalling it before you look — and generation, building the meaning of a brand-new word from its parts yourself. A flat list can't make you do either.
That's what a structured course does that a list can't. Wordiyo turns these scattered roots into an ordered path — each root taught through its real words, each lesson ending with a quiz that retries your misses until they stick. The Basics track is free, so you can start today without deciding anything.
用系统的方式学词根
把零散的词根变成有序的学习路径——每个词根都通过它真实的单词来教，错题会重出。Basics 入门课免费。
Keep going
- Browse all 600+ roots in depth on the Roots page — click any root for its full word family and pronunciation.
- New to the idea? Start with What Are Root Words?
- Preparing for a test? See the GRE root words guide.
- Want to go deeper by origin? Explore Latin roots and Greek roots.