| Grammar Notes about the Topic: |
| Grammar Exercise: |
| Roots Helper: |
| By Jiabao Hors |
| a- | change to adj./adv. | asleep aboard aside ashore ablaze |
| be- | change to verb | befriend bewitch behead belittle bedim |
| em- | change to verb | embark embed embody empower embitter |
| en- | change to verb | endanger encourage enrage enforce enslave |
| out- | change to verb | outflank outnumber outpace outwit outsmart |
| de- | decentralize decode decolonize dehydrate declassify |
| dis- | dislike distrust disagree disorder dishonest |
| il- | illegal illogical illiterate illegible illimitable |
| im- | impatient impolite impossible immature import |
| in- | incapable informal independent injustice inadequate |
| ir- | irregular irresponsible irritable irrelevant irradiate |
| mal- | malnutrition maladjusted malware malodorous malcontent More words and examples |
| non- | nonessential nonfiction nonprofit nonstop nondairy |
| un- | unable uncertain untidy unfairly undo |
| all- | all, whole | allegation allegiance allegory allergic alleviate alliance alligator |
| anti- | against | antibiotic anticipate anticlimax antidote antipathy antiquate antiquity More words and examples |
| arch | big, main | archaeological archetype archipelago architect archives More words and examples |
| auto- | do by self | autobiographical autocrat automate automobile automotive autonomous More words and examples |
| bi- | two,double | bicameral biennial bilateral |
| bio- | living, life | biographer biologist |
| centi- | one percent | centigrade |
| co- | together | coagulate coalition |
| counter- | opposite | counterbalance counterclockwise counterfeit countermand counterpart countervail More words and examples |
| down- | down, worsen | downcast downpour |
| ever- | lasting | evergreen everlasting |
| ex- | before, previous | exaggerate exaltation exceed |
| extra- | special, additional | extraordinary extrapolation More words and examples |
| fore- | front, before | forebear forecast forefront foremost More words and examples |
| hand- | by hand | handbook handicraft More words and examples |
| hydro- | with water | hydrophobia hydrosphere More words and examples |
| ill- | not good, not fit | illegible illimitable illiterate More words and examples |
| inter- | between, connected | interaction intercept interdependence interfere |
| mal- | bad, negative | maladroit malaise malcontent malediction malefactor More words and examples |
| man- | by man, to man | mandate maneuver manipulate |
| milli- | one thousandth | millionaire |
| mini- | small, tiny | miniature minimalist minimise minimize More words and examples |
| mis- | wrong, error | misapprehension miscarriage mischance mischief misconceive More words and examples |
| news- | news | newscast newsstand |
| over- | beyond, more than | overbalance overbearing overburden overcast overconfidence More words and examples |
| post- | after, post | postdate posterior postgraduate More words and examples |
| pre- | before, front | preamble precaution precede More words and examples |
| pro- | like, support | proceed process proclaim More words and examples |
| re- | again | readjust reassurance |
| self- | self | self-possession self-sufficient |
| semi- | half | semiarid semiliterate |
| sub- | next level, short of | subdivision subject subjugate submarine submerge More words and examples |
| super- | extreme | supercilious superfluous supernatural supersede More words and examples |
| tele- | far distance | telecommunication telegraph telescope More words and examples |
| trans- | moving, cross | transaction transcend transform transfuse transgress More words and examples |
| under- | under | undercharge underestimate undergraduate underground underline More words and examples |
| uni- | unique | unicorn uniform unilateral unimpeachable More words and examples |
| up- | up, lead changing | upbring update upgrade |
| well | well, ready | well-being |
| aero- | in air | aerodynamics |
| ante- | in front of | antecede antedate anterior |
| astro- | space, cosmic | astronomer |
| cardi- | heart | cardiologist |
| chron- | time, history | chronicle chronological |
| contra- | against | contradict |
| cross- | cross | crossbones crossfire |
| electro- | of electricity | electromagnetic electronics |
| fresh- | just, fresh | freshness |
| geo- | related to earth | geology geometry |
| homo- | same | homogeneous |
| hyper- | very | hypercritical hypersensitive |
| mega- | very large | megalomania |
| micro- | tiny, small | microcosm microfilm microscope |
| mono- | single, alone | monochromatic monolithic monologue monopolize monotonous |
| multi- | many, multiple | multicellular multifarious multiform multilateral multilingual |
| neo- | new | neoclassical neologism neonate neophyte |
| neur- | of nerve | neurotic |
| pan- | all inclusive | panacea pandemic panorama |
| para- | vice, sub level | paradigm paragraph parallel paralyse |
| phon- | of voice | phonetic |
| poly- | multiple | polygamist polyglot polygonal |
| quad- | four related | quadrilateral quadruped |
| socio- | of society | sociology |
| sur- | over, passed | surcharge surface surging |
| sym- | same | symmetrical sympathetic |
| tech- | of technology | technical technique technology |
| therm- | hot, warm | thermometer thermostat |
| tri- | three related | tribunal tributary trilogy |
| ultra- | extreme, very | ultrasonic ultraviolet |
| video- | video | videocassette |