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1. A Presentation Created by
TEACHERS UNLEASHED

2. Root words and Base words
• Root Words and Base Words are the
same.
• Root words and base words are the most
basic part of a word.
• If you add an affix to a root or base word
you change the meaning of the word.
“Cook” is a base
word.

3. Affixes
• Affixes are word parts that change the
meaning of a root or base word.
• Prefixes and Suffixes are both Affixes.
un+cook+ed=uncooked
Affix
Affix

4. Prefixes
• Prefixes are word parts (affixes) that
comes at the beginning of the root word
or base word.
un+cook+ed=uncooked
Prefix
Affix

5. Suffix
• Suffixes are word parts (affixes) that come
at the end of the root word or base word.
un+cook+ed=uncooked
Prefix
Suffix

6. Prefix: im-
Meaning: not
Examples:
impossible impolite

7. Prefix: in
Meaning: not
Examples:
invisible
infamous

8. Prefix: non
Meaning: not
Examples:
non-stop non-stick

9. Prefix: dis
Meaning: not
Examples:
disorganized disobey

10. Prefix: mis
Meaning: wrong
Examples:
misread misspell
I kan spell gud.

11. Prefix: un
Meaning: not
Examples:
unlucky unbelievable

12. Prefix: over
Meaning: Too much
Examples:
overcooked overdramatic

13. Prefix: under
Meaning: beneath, under
Examples:
underwear underwater

14. Prefix: re
Meaning: to do again
Examples:
recycle recount

15. Prefix: pre
Meaning: before
Examples:
preview preschool

16. Prefix: sub
Meaning: under
Examples:
subordinate submarine

17. Prefix: super
Meaning: above, over
Examples:
superhuman supermarket

18. Prefix: inter
Meaning: between
Examples:
intervene interstate

19. Prefix: fore
Meaning: before
Examples:
forecast foresee

20. Prefix: de
Meaning: down, away
Examples:
descend degrade

21. Prefix: trans
Meaning: To move
Examples:
transfer transportation

22. Prefix: semi
Meaning: incomplete, half
Examples:
semicircle semi-formal

23. Prefix: mid
Meaning: In the middle
Example:
midpoint

24. Prefix: hemi
Meaning: half
Example:
hemisphere

25. Prefix: pro
Meaning: for, forward
Examples:
promotion protest

26. Prefix: con
Meaning: with, together
Examples:
connect confide

27. Prefix: com
Meaning: together
Examples:
community communicate

28. Prefix: ex
Meaning: Out of, from
Examples:
exit exhale

29. Prefix: co
Meaning: together
Examples:
co-pilot cooperate

30. Prefix: multi
Meaning: many
Examples:
multicolored multivitamin

31. Prefix: poly
Meaning: many
Example:
polygon

32. Prefix: uni
Meaning: one
Examples:
unicycle universal

33. Prefix: quad
Meaning: four
Example:
quadrilateral

34. Prefix: tri
Meaning: three
Examples:
trimester
tricycle

35. Prefix: milli
Meaning: thousand
Examples:
million millipede

36. Prefix: centi
Meaning: hundred
Examples:
century centimeter
100
years

37. Suffix: er
Meaning: one who takes part in
Examples:
teacher driver

38. Suffix: est
Meaning: the most
Examples:
smallest strongest

39. Suffix: ed
Meaning: to have done
Examples:
played raced

40. Suffix: ing
Meaning: to be doing
Examples:
singing dancing

41. Suffix: ly
Meaning: like
Examples:
cowardly happily

42. Suffix: ion, tion
Meaning: action
Example:
construction

43. Suffix: able, ible
Meaning: to be able to
Examples:
readable cleanable

44. Suffix: ness
Meaning: the state of
Examples:
happiness craziness

45. Suffix: ment
Meaning: the feeling of
Examples:
contentment refreshment

46. Suffix: ous, ious, eous
Meaning: having the quality of
Examples:
adventurous curious

47. Suffix: Ive, ative, tive
Meaning: condition
Examples:
creative sensitive

48. Suffix: ful
Meaning: to be full of
Examples:
thankful peaceful

49. Suffix: less
Meaning: without
Examples:
thoughtless helpless

50. Root: chron
Meaning: time
Examples:
chronologic synchronize chronic

51. Root: gen
Meaning: birth/race
Example:
generation

52. Root: rupt
Meaning: break
Examples:
rupture erupt

53. Root: tele
Meaning: distance
Examples:
television telephone telegraph

54. Root: migr
Meaning: change/move
Examples:
migrate migrating

55. Root: spect
Meaning: see
Examples:
inspect suspect spectator

56. Root: sign
Meaning: mark
Examples:
signal signature

57. Root: therm
Meaning: heat
Examples:
thermal thermometer thermostat

58. Root: graph
Meaning: write
Examples:
photograph autograph biography

59. Root: scop
Meaning:see
Examples:
microscope telescope

60. Root: loc
Meaning: place
Examples:
location local

61. Root: form
Meaning: shape
Examples:
uniform transform

62. Suffix: ast
Meaning: star
Examples:
astronaut astronomy asteroid

63. Suffix: opt
Meaning: sight
Examples:
optical optometrist

64. Root: liber
Meaning: free
Example:
liberty

65. Root: bio
Meaning: life
Examples:
biology biography

66. Root: flect/flex
Meaning: bend
Examples:
reflection flexible

67. Root: hydr
Meaning: water
Examples:
hydrant dehydrate

68. Root: geo
Meaning: earth
Examples:
geography geology

69. Root: aud
Meaning: to hear
Examples:
audience audible