1. myc-, mycet-, myco- fungi

2. myel-, myel- marrow

3. necr-, necro- death, corpse

4. new, strange neo-

5. neph-, nephro- kidney

6. neur-, neuro- nerve

7. noct-, nocti- night

8. nos-, noso- disease

9. ocul-, oculo- eye

10. tooth, teeth odont-, odonto-

11. -oid likeness, resemblance

12. olig-, oligo- few, a deficiency

13. -oma tumor, swelling

14. onych-, onycho- nails

15. oo-, ovi-, ovo- egg

16. oophor-, oophoro- oophor-, oophoro- ovary

17. opthal-, opthalmo- eye

18. orth-, ortho- straight, normal

19. oscillo- to swing to and fro

20. bone, bone tissue oss-, osseo-, ossi-, oste-, osteo-

21. -ostomy create a mouth or opening by surgery

22. ot-, oto- ear

23. -otomy cutting into

24. ovar-, ovario- ovary

25. -oxia pertaining to oxygen

26. para- near, beyond, apart from, beside

27. path-, patho-, -pathy disease. abnormal condition

28. child, foot ped-, pedia-

29. -penia lack of

30. per- through, excessively

31. peri- around

32. -pexy fixation

33. phag-, phago- to eat, to ingest

34. -phagia, -phagy eating, swallowing

35. -phasia speech, ability to talk

36. to be fond of, to like -phil, -philic

37. phleb-, phlebo- vein

38. phob-, phobia- fear, dread, abnormal aversion

39. phot-, photo- light

40. pile-, pili-, pilo- hair, resembling hair

41. -plasty molding, surgical formation

42. pleur-, pleuro- side, rib, serous membrane covering the lung and lining of the chest cavity

43. -pnea air, breathing

44. neum-, pneuma- pneumo-, pneumon- pneumato- p neum-, pneuma- pneumo-, pneumon- pneumato-, air lung, air

45. pod-, podo- foot

46. making, forming -poiesis

47. polio- gray

48. poly- many

49. post- behind, after, following

50. pre- before, ahead of

51. presby- old age

52. pro- in front of, before

53. proct-, procto- rectum

54. false pseud-, pseudo-

55. psych-, psycho- mind

56. -ptosis downward displacement, falling, prolapse

57. pulmo-, pulmono- lung

58. py-. pyo- pus

59. kidney pelvis pyel-, pyelo-

60. rachi-, rachio- spine

61. radio- emission of rays or radiation

62. re- again, back

63. ren- kidney

64. retro- backward, located behind

65. flow of matter or of a current of electricity rheo-

66. rhin-, rhino- nose

67. -rrhage, -rrhagia excessive flow

68. -rrhaphy suturing of or sewing up of a gap or defect in a part

69. -rrhea flow or discharge

70. salping-, salpingo- tube

71. scler-, sclero- hardness

72. scolio- twisted, crooked