1. (1) arch- means chief; first
Examples
Archetype = original
Archbishop = chief bishop
Archeology = study of first people or ancient times

2. (2) be- means over; thoroughly
Examples
Bedaub = smear all over
Befuddle = to confuse totally
Beguile = totally charm or even deceive

3. (3) bi- means two Bicycle = two-wheeled fun Biennial = every two years
Examples
Bicycle = two-wheeled fun
Biennial = every two years
Bicameral = two groups/houses (like in congress)

4. (4) cata- means down Catastrophe = disaster Cataract = waterfall
Examples
Catastrophe = disaster
Cataract = waterfall
Catapult = to hurl (throw down)

5. (5) circum- means around
Examples
Circumnavigate = travel all the way around the world
Circumspect = cautious (looking around)
Circumscribe = to limit (place a circle around)

6. (6) com-/con- means with; together
Examples
Combine = put together with
Communicate = talk with
Conference = meeting

7. (7) co-/col- means with; together
Examples
Coeditor = editor with another
Collateral = connected with
Collate = to put together

8. (8) Cor- means with; together
Examples
Correlate = to match up with
Corroborate = to confirm; to verify

9. (9) Contra-/contro- means against
Examples
Contravene = conflict with
Controversy = argument or dispute
Contradictory = disagreeing with

10. (10) Demi- means partly; half
Examples
Demigod = partly a god
Demitasse = small cup

11. (11) Di- means two Dichotomy = split into two parts
Examples
Dichotomy = split into two parts
Dilemma = choice between two bad alternatives

12. (12) Dia- means across
Examples
Diameter = distance across the center of a circle
Diagonal = distance across a figure
Diagram = a drawn model

13. (13) Dis-/dif- means not; apart
Examples
Discord = not in harmony
Differ = to disagree
Disparity = not being equal; having a difference

14. (14) Dys- means faulty; bad
Examples
Dysfunctional = operate incorrectly
Dyslexia = faulty ability to read
Dyspepsia = indigestion

15. (15) Ex-/e- means out Exit = to leave Expel = to drive out
Examples
Exit = to leave
Expel = to drive out
Extirpate = to root out
Eject = to throw out

16. (16) Extra-/extro- means beyond;outside
Examples
Extracurricular = beyond the curriculum
Extraterritorial = beyond a nation’s boundaries
Extrovert = a person mostly interested in other people and things

17. (17) Hyper- means above; excessively
Examples
Hyperbole = exaggeration
Hyperventilate = breathe very quickly

18. (18) Hypo- means beneath; lower
Examples
Hypoglycemia = low blood sugar
Hypothyroid = low-functioning
Hypodermic = beneath your skin

19. (19) in-/im- means not Inefficient = not efficient or productive
Examples
Inefficient = not efficient or productive
Inarticulate = can’t speak understandably
Impeccable = not wrecked up; perfect

20. (20) il-/ir- means not Illegible = not readable
Examples
Illegible = not readable
Irrelevant = doesn’t matter
Irrevocable = can’t change it or “call it back”

21. (21) inter- means between; among
Examples
Intervene = come between
International = between countries
Interjection = a comment thrown in

22. (22) in-/im-/il-/ir- means in; on; upon; among
Examples
Invite = to call in
Illustration = something that makes things clear
Impression = have an effect upon someone’s opinion
Irradiate = to shine upon

23. (23) intra-/intro- means within
Examples
Intramural = within a school
Introvert = person who turns within himself

24. (24) macro- means large; long
Examples
Macrobiotic = prolonging life
Macrocosm = the entire universe or “the big picture”

25. (25) mega- means great; million
Examples
Megalomania = delusions of grandeur/greatness
Megaton = explosive force of a million tons of TNT
Megaphone = makes your voice really loud

26. (26) meta- means involving change
Examples
Metamorphosis = a complete change of form
Metacognition = a complete change of thinking

27. (27) micro- means small; miniature
Examples
Microcosm = miniature universe/world
Microscopic = extremely small to look at
Microbe = tiny organism

28. (28) mis- means bad; wrong
Examples
Misdemeanor = minor crime
Mischance = unfortunate accident
Misnomer = wrong name

29. (29) mis- means hatred Misanthrope = person who hates mankind
Examples
Misanthrope = person who hates mankind
Misogynist = person who hates women

30. (30) mono- means one Monarchy = government by one king or queen
Examples
Monarchy = government by one king or queen
Monotheism = belief in one god
Monopoly = one person/entity has complete ownership/control

31. (31) -able/-ible means capable of adj.
Examples
Portable = able to be carried
Legible = able to be read
Interminable = not able to be limited

32. (32) –ac/-ic means like or about adj.
Examples
Cardiac = about the heart
Aquatic = about the water
Dramatic = about drama

33. (33) –acious/-icious means full of adj.
Examples
Audacious = full of daring
Perspicacious = full of mental perception
Avaricious = full of greed

34. (34) -al [turns a noun into an adjective]
Examples
Maniacal = insane
Final = the end of something
Logical = clear and orderly thinking

35. (35) –ant/-ent means full of adj. or noun
Examples
Eloquent = full of fluid and effective speech
Suppliant = a person full of requests
Verdant = very (full of) green

36. (36) –ary means like, about, connected with adj. or noun
Examples
Dictionary = book about words
Honorary = with honor
Luminary = shiny person or object

37. (37) –ate means to make verb
Examples
Consecrate = to make holy
Enervate = to make tired or weary
Mitigate = to make less severe

38. (38) –ation means that which is noun
Examples
Exasperation = out of patience
Irritation = annoyance
Fascination = totally interested

39. (39) –cy means state of being noun
Examples
Democracy = government ruled by the people
Obstinacy = being obstinate (stubborn)
Accuracy = being accurate (correct)

40. (40) –eer/-er/-or means person who noun
Examples
Mutineer = person who rebels
Teacher = person who teaches
Censor = person who deletes improper content

41. (41) –fic means making; causing adj.
Examples
Terrific = causing fear
Soporific = causing sleep

42. (42) –fy means to make verb
Examples
Magnify = to enlarge
Petrify = to turn into rock
Beautify = to make beautiful

43. (43) –iferous means producing; bearing adj.
Examples
Pestiferous = carrying disease
Vociferous = producing a loud noise

44. (44) –il/-ile means about; capable of adj.
Examples
Puerile = about a boy or child
Ductile = capable of being hammered or drawn
Civil = polite

45. (45) –ism means doctrine; belief system noun
Examples
Monotheism = belief in just one god
Communism = doctrine of the government owning everything and people owning nothing
Judaism = belief in the Jewish Yahweh god

46. (46) –ist means doer, person who studies noun
Examples
Geologist = person who studies the earth
Artist = person who creates art
Realist = person who “does” reality

47. (47) –ity means state of being noun
Examples
Annuity = having a yearly grant
Credulity = being very willing to believe
Sagacity = being full of wisdom

48. (48) –ize/-ise means to make verb
Examples
Victimize = to make someone a victim
Harmonize = to make pleasing, blending sounds
Enfranchise = to set or make free

49. (49) –oid means resembling, like noun
Examples
Asteroid = like a star
Anthropoid = resembling a human
Spheroid = similar to a sphere

50. (50) –ive means pertaining to; about adj
Examples
Expensive = costly
Quantitative = about an amount
Effusive = “gushy”

51. (51) –ose means full of adj
Examples
Verbose = full of words
Lachrymose = full of tears

52. (52) –osis means condition of noun
Examples
Psychosis = sick mental condition
Neurosis = nervous condition
Hypnosis = causing induced sleep

53. (53) –ous means full of adj
Examples
Nauseous = full of nausea
Ludicrous = full of foolishness

54. (54) –tude means state of noun
Examples
Fortitude = state of strength and courage
Beatitude = being blessed
Certitude = state of being certain or sure

55. (55) ab-/abs- means from; away from
Examples
Absent = away from here
Abduct = lead away; kidnap
Abject = less than; degraded

56. (56) ambi- means both, more than one
Examples
Ambidextrous = skilled with both hands
Ambiguous = has a double meaning
Ambivalent = having two conflicting emotions

57. (57) an-/a- means without
Examples
Anarchy = without government; with no order
Anesthesia = causing non-consciousness
Amoral = no moral structure

58. (58) ante- means before; in front of
Examples
Antecedent = thing that came before
Antediluvian = before the flood
Antebellum = before the war

59. (59) anti- means against; opposite
Examples
Antipathy = hatred; dislike
Antiseptic = against infection
Antithetical = an opposite idea

60. (60) multi- means many Multicolored = has lots of colors
Examples
Multicolored = has lots of colors
Multitude = many people
Multisyllabic = has lots of syllables

61. (61) neo- means new Neophyte = beginner; novice
Examples
Neophyte = beginner; novice
Neonatal = care for sick newborns

62. (62) non- means not Noncommittal = undecided
Examples
Noncommittal = undecided
Nonentity = a person of no importance

63. (63) ob-/oc-/of-/op- means against
Examples
Object= speak against
Occlude = block out
Offend = insult
Opponent = person you struggle against

64. (64) olig- means few
Examples
Oligarchy = government by a few

65. (65) pan- means all; every
Examples
Panacea = cure-all
Panorama = unblocked view in all directions
Pandemic = sickness in every part of the world

66. (66) para- means beyond; related
Examples
Paraphrase = to restate in a related way
Paramedic = related to medical doctors (but not actually them)
Paranormal = beyond normal

67. (67) per- means through; completely
Examples
Permeable = allowing passage through
Pervasive = spread everywhere/completely

68. (68) peri- means around; near
Examples
Perimeter = distance around something
Periphery = near the edge

69. (69) poly- means many Polygamy = having many spouses
Examples
Polygamy = having many spouses
Polyglot = speaking many languages
Polytheism = belief in many gods

70. (70) post- means after Postpone = to delay
Examples
Postpone = to delay
Posterity = generations that come after you
Posthumous = after death

71. (71) pre- means before
Examples
Preamble = statement that comes before a speech/document
Prefix = letters that are put before a base word
Premonition = forewarning

72. (72) prim- means first
Examples
Primordial = already existed at the beginning of time
Primer = book (or point) that comes first
Primogeniture = being born first

73. (73) pro- means forward; in favor of
Examples
Propulsive = driving forward
Proponent = someone in favor of

74. (74) proto- means first Prototype = first of its kind
Examples
Prototype = first of its kind
Protoplasm = organism of basic life

75. (75) pseudo- means false Pseudonym = fake name
Examples
Pseudonym = fake name
Pseudoscience = false science

76. (76) re- means again; back
Examples
Reiterate = say again
Reimburse = pay back
Review = look at again

77. (77) retro- means backward
Examples
Retrospect = looking back
Retroactive = effective as of a past date

78. (78) se- means away; aside
Examples
Secede = to withdraw
Secluded = shut away
Seduce = lead astray

79. (79) semi- means half; partly
Examples
Semiannual = every six months
Semiconscious = partially conscious

80. (80) sub-/sup-/sus- means under; less
Examples
Submarine = boat under the water
Suppress = squash or put down by force
Suspend = to delay or pause

81. (81) suc-/suf-/sug- means under; less
Examples
Succumb = yield; stop resisting
Suffuse = spread throughout
Suggest = hint

82. (82) super-/sur- means over; above
Examples
Supernatural = beyond natural things
Supervise = oversee
Surtax = a tax that’s over and above the usual taxes

83. (83) syn-/sym-/syl-/sys- means with; together
Examples
Synchronize = match time with
Sympathize = feel with
Syllogism = how ideas go together
System = network together

84. (84) tele- means far
Examples
Telegraphic = written communication over a far distance
Telephone = instrument to hear over a far distance

85. (85) trans- means across Transport = to carry across
Examples
Transport = to carry across
Transpose = to reverse or to move across

86. (86) ultra- means beyond; excessive
Examples
Ultramodern = excessively modern
Ultracritical = exceedingly critical

87. (87) un- means not Unlike = not like any other Unexpected = a surprise
Examples
Unlike = not like any other
Unexpected = a surprise

88. (88) under- means below Undergird = strengthen below
Examples
Undergird = strengthen below
Underachiever = achieving below ability

89. (89) uni- means one Unison = singing/talking “as one”
Examples
Unison = singing/talking “as one”
Unicycle = one-wheeled vehicle

90. (90) vice- means in place of
Examples
Vicarious = acting as a substitute
Viceroy = in place of a king
Vice president = in place of a president

91. (91) with- means away; against
Examples
Withdraw = pull away
Withstand = stand up against; resist

92. (92) -ac-/-acr- means sharp
Examples
Acerbic = bitter; sharp
Acrimonious = bitter (like acid or poison)

93. (93) -ag-/-act- means do Act = a deed; something you do
Examples
Act = a deed; something you do
Agent = a person who does something

94. (94) -agog- means leader Demagogue = a leader who leads deceptively
Examples
Demagogue = a leader who leads deceptively
Pedagogue = a teacher or leader (of children)

95. (95) -agri-/-agrari- means field
Examples
Agrarian = field-related
Agriculture = cultivated fields

96. (96) -ali- means another Alias = another (fake) name
Examples
Alias = another (fake) name
Alienate = to turn away from another; to be “far away” from them

97. (97) -alt- means high Altitude = height
Examples
Altitude = height
Altimeter = instrument for measuring height

98. (98) -alter-/-altr- means other
Examples
Altruistic = unselfish; thinking about others
Alter ego = a second self

99. (99) -am- means love
Examples
Amicable = friendly
Amorous = loving

100. (100) -anim- means mud; soul
Examples
Unanimous = of one mind
Magnanimity = greatness of mind and spirit