1) dis disadvantage, dislike, disagree, disappear, disarm, disaster, disastrous, disappoint, disable, disability, discharge, disclose, discount, discourage, discover, discovery, discrepancy, disease, disgrace, disguise, disgust,
dishonor, dishonest, dislike, dismay, disorder, dispatch, disperse, displace, displacement, displease, disregard, dissatisfy, distort , distract, disintegrate, isparage, dispassion, disproportionate
2) in- inability, incorrect, inability, incapable, indirect, inhuman, injustice, informal, inside, include, inclusive, income, increase, increasingly, incredible, indefinite, independence, independent, indifferent, indirect, indispensable, individual, indoor, inertia , inevitable, infamous , infinite, inhabit , inhabitant, inherent , inject, inland , inlet , inner, innocent, innumerable , input, inquire, inquiry, insane, insensitive, insert, inside, insight, insist, inspect, inspiration , inspire, install, installation, installment , instance, instant, instinct, insulate , intense, interior, internal, into, intrinsic, invade, invalid , invaluable , invariably , invasion, invert , investigate, invisible, involve, inward, incomplete, indecisive, inedible, inept, inevitably, infection, infirm, injection, innate, insatiable, insecurity, insider, insidious
3) im- impossible, imbalance, immature, immoral, impatient, implicit , impress, impression, import, immigrate, imprison, immerse
4) il- illegal, illiterate, illogical ir- irregular, irresponsible, irrespective
5) un- unable, uncover, undo, undoubtedly, undress , uneasy, unemployment , unexpected, unfold , unfortunately, unimportant, unlike, unload, unusual, unaware, enlightened, unparalleled, unsustainable,
6) non- nonsmoker, nonexistence, non-cooperation, nonstop, nonmetal, nonresident, nonsense, nonfundamentalist, nonspecialist
7) mis- mislead, misspell, misstep, misfortune, misuse, misguided, misinformation
8) de- deform, deface, demobilize, destruction, deforest, denationalize, depress, depression, decode, decrease, degenerate , degrade , descend, descendant , descent
9) pre- prefix, pre-historic, precaution, precede , preceding, preclude , predecessor , predict, predominant , preface, prejudice, preliminary, premature , premier , premise , premium , preparation, prepare, prepay, preside , president, presumably, presume , pretext , prevail, prevent, previous, prewar, preconception, prediction, prescientific, presumptively
10) ante-, anteroom, ante-Christian, antemeridian, anticipate, antique
11) fore- forearm, forehead, foreman, foretell , foresee , forefather , foreleg, forerunner , fore , foremost, forecast, forewarn
12) ex- ex-minister, ex-president, ex-Soviet Union, ex-wife, export, exclude, exclusive, excursion, exhibit, exile , exit, exotic , expand, expansion, expedition , expel , expend , expenditure , expense, explode, explosion, explosive, expose, exposition , exposure, express, expression, extend, extension, extensive, exterior, external, extinct, extra, extract
13) post- postgraduate, postwar, postmeridian, postpone, postscript
14) sub- sub, subject, subway, subtitle, subdivide, submarine , sub-zero, submerge, submit, subordinate , subscribe , subsection, subsequent, subsidiary , subsidy , substance, substantial, substitute, subtract, suburb, subconsciously, subtly
15) infra- infrastructure , infrared
16) re- react, reaction, recall, recede , receipt, recipient , reclaim , recognize, recognition, record, recorder, recover, recovery, recreation, recur , recycle , redundant , reflect, reflection, reflexion, reform, refrain , refresh, refreshment , refund , refute , reinforce, reject, remember, remind, removal, remove, renaissance , renew, repay , repeat, repeatedly, repel , repetition, replace, replacement, represent, representative, repression , reproduce, respect, respond, response, responsibility, responsible, restore, resume, return, reunion , revise, revive
17) co-, col-, com-, con-, cor- co-existence, cooperative , co-author, coalition , coherent , coincide , coincidence , collaboration , colleague, collide , collision, collocation, compassion, compassionate, concentric, confederation, conjoin, coordinate, correlate, correlation, correspond
18) inter- interchange, interchangeable, interdependent, interpersonal, interview, interact , interaction, intercourse , interface , interfere, interference, Internet, interrupt, interval, intervene
19) macro- macroeconomics , macrocosm , macrostructure
20) micro- microcomputer, microeconomics , microscope, microphone, microsurgery, microelectronics, microbiologist
21) super- super, supermarket, supersonic , superman, superpower, supernatural, supervise , superb, superficial, superintendent , superior, superiority , supreme, supersystem
22) sur- surplus, surtax, surface, surpass , surround, survival, survive, suspect
23) ultra- ultramodern, ultrasound, ultra-violet
24) auto- auto, autocriticism, autoland, automobile, automation , automatic, autobiography , autonomous , autonomy
25) mal- malfunction, maltreat , malnutrition , malpractice
26) tele- telegram, television, telegraph, telephone, telecommunications , telescope, telescreen, teleswitch, televise
28) semi-, hemi- semicircle, semiconductor, semi-colony , semifinal, hemisphere
29) uni-, mono- uniform, unify , union, unique, unit, unite, unity, universe, universal, university, monologue , monoplane, monopoly , monotone, monotonous , carbon monoxide
30) bi-, di- biweekly, bicycle, bilateral , billion, bilingual, dialogue, carbon dioxide
31) tri- tricycle , triangle, triangular, trilogy , triple, trigonometry
32) quadri-, quadru- quadruple, quadrangle
33) penta- pentagon, Pentagon, Pentium
34) hexa- hexagon, hexangular mill- millennium, millimeter
35) sept- September, Sept-Wolves nona- nonagon, November
36) octa- octagon, octave, octopus, October 38) deci-, deca- decade, decimal
39) centi- centigrade, centimeter, centipede, century
40) kilo- kilo, kilometer, kilogram , kilowatt
42) multi- multipurpose, multinational, multiple, multiply, multitude
43)counter-,anti-,contra- mini- minibus, miniskirt, minimum, minister, ministry, minor, minority, minute
45) max- maximum, maximal, maximize
46) out- outdo, outwit, outlive, outnumber, outdoor, outstanding, outskirts , outward, outcome, outer, outing , outline, outlook, output, outrage , outside
47) over- overwork, overuse, overtake, overpass , overthrow , overturn , overall, overdue , overhead, overhear , overlook, overseas, overtime
48) trans- transaction , transatlantic, transcend , transfer, transform, transistor , transit , transition , translate, translation, transmission, transmit, transmitter, transparent, transplant, transport, transportation
49) under- underdevelop, underdevelopment, underestimate, undergraduate, underground, underlie , underline, undersea, underlying , undermine , underneath, underwear
50) neo- neo-Nazism, neolithic
51) be- befriend, belittle
52) bio- biology, biography , autobiography, antibiotic, biochemistry, biosphere, biomedical
53) en- em- embody, empower, endanger, enlarge, enrich, encompass, enthrone, entrench
54) extra- extracurricular, extraordinary
55) mid- midday, midnight
56) poly- polycentric, polydirectional, polysyllabic
57) pseudo- pseudomemory, pseudonym, pseudoscience
58) thermo- thermochemistry, thermometer
59) vice- vice-chairman, vice-president
60) aero- aerial , aeroplane, aeronautics, aerospace
61) cross- cross-country, crossbreed
62) intra- intracity, intra-department, intranet
63) pro- pro-America, pro-abortion
64) self- self-employed, self-taught
65) step- stepmother, stepchildren
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