There are 12 words that start with 'osteop'.
| osteopath | osteopaths |
| osteopathy | osteopathic |
| osteoplasty | osteopathies |
| osteoplastic | osteoporoses |
| osteoporosis | osteoporotic |
| osteoplasties | osteopathically |
Note: These 12 words that start with 'osteop' are found from the USA & Canada version of the tournament Scrabble word list.