常見英文字根（roots）
包含字根本身、其意義，以及常見例字（詞首、詞中或詞尾）作為輔助理解，方便你記憶與學習。
| 字根 | 意義 | 例字（含該字根） |
|---|---|---|
| act | do, act | action, actor |
| agri | field | agriculture |
| alt | high | altitude, altar |
| anim | life, spirit | animal, animate |
| ann / enn | year | annual, millennium |
| aqua | water | aquarium, aquatic |
| aud | hear | audio, audience |
| auto | self | automatic, autograph |
| bell | war | rebellion, bellicose |
| bene | good | benefit, benevolent |
| bio | life | biology, biography |
| brev | short | abbreviate, brevity |
| cap / capt / cept | take | capture, accept |
| carn | flesh | carnivore, carnal |
| ced / cess | go, yield | proceed, success |
| cent | hundred | century, percent |
| chron | time | chronological, chronic |
| cide | kill | homicide, pesticide |
| civ | citizen | civil, civilization |
| clam / claim | shout | exclaim, proclaim |
| clar | clear | clarify, declaration |
| clud / clus | shut | exclude, conclusion |
| cogn | know | recognize, cognition |
| corp | body | corporation, corpse |
| cred | believe | credible, credit |
| cur / curs | run | current, excursion |
| cycl | circle | bicycle, cyclone |
| dem | people | democracy, epidemic |
| dent | tooth | dentist, dental |
| dict | say, speak | predict, dictate |
| doc | teach | doctor, document |
| domin | master | dominate, domain |
| don / dot | give | donate, endow |
| duc / duct | lead | conduct, educate |
| dur | hard, lasting | durable, endure |
| dyn | power | dynamic, dynasty |
| equ | equal | equity, equator |
| fac / fact / fect | make, do | factory, effect |
| fer | carry | transfer, refer |
| fid | faith | fidelity, confident |
| fin | end | final, infinite |
| flam / flagr | fire | inflame, flagrant |
| flex / flect | bend | reflex, deflect |
| form | shape | transform, deform |
| fort | strong | fortress, fortify |
| fract / frag | break | fracture, fragment |
| funct | perform | function, malfunction |
| gen | birth, kind | generate, gene |
| geo | earth | geography, geology |
| grad / gress | step | graduate, progress |
| graph / gram | write | graphic, telegram |
| grat | pleasing | grateful, gratitude |
| grav | heavy | gravity, grave |
| habit / hibit | have, hold | inhabit, exhibit |
| hem / hemo | blood | hemoglobin, hemorrhage |
| homo | same | homogeneous, homonym |
| hydr | water | hydrate, dehydrate |
| ject | throw | eject, inject |
| jud | judge | judicial, prejudice |
| junct | join | junction, conjunction |
| jur | law | jury, perjury |
| labor | work | laboratory, collaborate |
| leg / lect | read, choose | lecture, elect |
| liber | free | liberty, liberal |
| lingu | tongue | linguist, bilingual |
| liter | letter | literary, literal |
| loc | place | local, dislocate |
| log | word, study | logic, dialogue |
| luc / lum | light | lucid, illuminate |
| magn | great | magnificent, magnify |
| mal | bad | malice, malfunction |
| man / manu | hand | manual, manufacture |
| mand | order | command, demand |
| mar | sea | marine, submarine |
| mater / matr | mother | maternal, matrimony |
| med / medi | middle | median, mediate |
| mem | memory | remember, memorial |
| meter / metr | measure | thermometer, metric |
| migr | move | migrate, immigrant |
| min | small | minimal, minority |
| mit / miss | send | transmit, dismiss |
| mob / mot / mov | move | mobile, motion |
| mon | warn | monitor, premonition |
| morph | form | morph, metamorphosis |
| mort | death | mortal, mortuary |
| multi | many | multiple, multilingual |
| nat | born | native, nature |
| nav | ship | navy, navigate |
| neg | deny | negative, neglect |
| neo | new | neon, neologism |
| noc / nox | night | nocturnal, equinox |
| nom | name | nominate, nomenclature |
| nov | new | novel, innovation |
| omni | all | omnivore, omniscient |
| opt | eye, choose | optical, option |
| pac | peace | pacify, pacific |
| pan | all | pandemic, panorama |
| pater / patr | father | paternal, patriot |
| path | feeling | sympathy, pathology |
| ped / pod | foot | pedal, tripod |
| pel / puls | drive | propel, repulse |
| pend | hang | suspend, depend |
| phon | sound | telephone, phonics |
| photo | light | photograph, photosynthesis |
| plac | please | placate, complacent |
| plen | full | plenty, replenish |
| plu / plur | more | plural, surplus |
| polis / polit | city | metropolis, politics |
| port | carry | transport, portable |
| post | after | postpone, postwar |
| pot | power | potent, potential |
| prim | first | primary, primitive |
| psych | mind | psychology, psychic |
| punct | point | puncture, punctual |
| put | think | compute, dispute |
| quer / quir / ques / quis | ask | query, inquire |
| radic / radix | root | radical, eradicate |
| rect | straight | correct, direct |
| reg | rule | regime, regulate |
| retro | backward | retroactive, retrofit |
| rid / ris | laugh | ridicule, risible |
| rupt | break | disrupt, erupt |
| sanct | holy | sanctuary, sanctify |
| sat | enough | satisfy, saturate |
| scend | climb | ascend, descend |
| sci | know | science, conscious |
| scrib / script | write | describe, manuscript |
| sec / sect | cut | section, dissect |
| sed / sid / sess | sit | sediment, session |
| sens / sent | feel | sense, sentiment |
| sequ / secut | follow | sequence, consecutive |
| serv | keep, save | preserve, conserve |
| sign | mark | signature, signal |
| sim / sem | same | similar, resemblance |
| sist | stand | resist, persist |
| sol | sun | solar, parasol |
| solv / solut | loosen | resolve, solution |
| somn | sleep | insomnia, somnolent |
| son | sound | sonar, consonant |
| spec / spic | see | inspect, conspicuous |
| spir | breathe | inspire, respiration |
| sta / sti / sist | stand | status, persist |
| strict | draw tight | restrict, constrict |
| stru / struct | build | construct, structure |
| sum / sumpt | take | consume, assumption |
| surg / surr | rise | surge, resurrect |
| syn / sym | together | synchronize, symphony |
| tact / tang | touch | contact, tangible |
| tele | far | telephone, telepathy |
| tempor | time | temporary, contemporary |
| ten / tain / tin | hold | contain, retention |
| term | end | terminal, determine |
| terr | earth | territory, terrain |
| test | witness | testify, testament |
| the / theo | god | theology, atheist |
| therm | heat | thermometer, thermal |
| tract | pull | attract, distract |
| trib | give | tribute, contribute |
| turb | disturb | disturb, turbulence |
| typ | typewriter, typography | |
| urb | city | urban, suburb |
| vac | empty | vacuum, evacuate |
| vad / vas | go | evade, invade |
| ven / vent | come | invent, intervene |
| ver | true | verify, verdict |
| verb | word | verbal, proverb |
| vers / vert | turn | reverse, convert |
| vid / vis | see | video, visual |
| vinc / vict | conquer | victory, convince |
| viv / vit | life | survive, vitality |
| voc / vok | call | vocal, invoke |
| vol | will | voluntary, benevolent |
| volv / volut | roll | revolve, evolution |
| xen | foreign | xenophobia, xenon |
| zo | animal | zoology, protozoa |