Final answer:
The word septic is a eponym, derived from the noun septicemia, which is a type of blood infection.
Step-by-step explanation:
The word septic is a eponym, which is a word derived from a proper name. In this case, it is derived from the noun septicemia, which is a type of blood infection. The word septic is used to describe something that is related to or characteristic of septicemia.