Root Words

Root words are words that have a meaning of their own but can be added to, either with a prefix (before the root) or a suffix (after the root.) Root words can often be helpful in finding out what a word means or where it is ‘derived’ from.

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1. act
2. child
3. electric
4. mistake
5. assist
6. examine
7. prove
8. light
9. operate
10. prison
11. actor
12. children
13. electrical
14. overtaken
15. assisting
16. examiner
17. disprove
18. lightning
19. operation
20. imprison

21. reaction
22. childless
23. electricity
24. overtaking
25. assistant
26. examined
27. approval
28. delighted
29. cooperate
30. imprisoned
31. reactivity
32. childishness
33. electrocution
34. partaking
35. assistance
36. examination
37. disapproval
38. delightful
39. cooperation
40. imprisonment