The combining form that means "instrument to record" is "-graph." This suffix is often used in various medical and scientific terms, such as "electrocardiograph," which is an instrument that records the electrical activity of the heart.
The suffix graph is defined as: A instrument used to record; record.
-graphy is the medical terminology combining form meaning the process of recording.
gram means record of.
-scope is the medical terminology combining form meaning instrument to view.
The combining form hist/o means
Xeno- is the combining form meaning strange or other.
Combining form derm/o means: skin
The combining form that means "nail" is onych/o.
A hump is not a medical term, so I can't give you the correct combining form.
Combining form for shape
The prefix hepta- means seven.
-scope