morbific

The story

1. Latin · derived frommorbus“sickness”
2. Middle French · derived frommorbifique
3. English todaymorbific

From Middle French morbifique, or its source, post-classical morbificus, from Latin morbus (“sickness”).

Words from the same roots

First known use, by meaning

• from 17th c. That causes disease; sickening, pathogenic.
• from 17th c. Pertaining to or caused by disease; diseased.