Onych/o
ungu/o
Onycho- is the medical terminology combining form meaning nail. The medical term for nail is unguis.
The combining form hist/o means
Combining form derm/o means: skin
Combining form for shape
The combining form theo- means god.
A hump is not a medical term, so I can't give you the correct combining form.
The medical terminology combining form for "rapid" is "tachy-." For instance, tachycardia is abnormally rapid heartrate.
The combining word is sphygum
Xeno- is the combining form meaning strange or other.
Spleno means spleen in medical terminology.Spleno- is already the combining form. It is the combining form for the spleen.
They combine to form rust. You might be able to guess from what's combining that "rust" is apparently an iron oxide.