septaemia

The story

1. Ancient Greek · derived fromσηπτός
2. New Latin · borrowed fromseptaemia
3. English todayseptaemia

From New Latin septaemia, from Ancient Greek σηπτός (sēptós), verbal adjective of σήπω (sḗpō, “make rotten”), + αἷμα (haîma, “blood”) + -ia.