noun
scurvy
SKUR-vee/ˈskɜːrvi/
A disease caused by severe lack of vitamin C.
A diet with almost no vitamin C can cause scurvy.

Etymology
Scurf plus -y originally described scaly or scabby skin. That adjective became a disease name, narrowing to the particular illness now identified with severe vitamin C deficiency.
In context
suggested that citrus juices be administered aboard ships to prevent and cure scurvy
More examples
- Fresh fruits and vegetables help prevent scurvy.
- People with scurvy may have bleeding gums and feel exhausted.
- Doctors treat scurvy with vitamin C supplements.