This document provides vocabulary related to immunity, including prefixes, suffixes, and root words. It lists prefixes like "chemo-" and "dia-", suffixes like "-gen", and root words including "humor", "immunis", "inflammare", and "lympha" which relate to concepts in immunology such as humoral immunity, immune, inflammation, and lymph. It also defines terms that combine roots and affixes such as chemotaxis, diapedesis, antigen, pathogen, pyrogen, and nodule.