The word "pestis" is a Latin term meaning "plague" or "pestilence." Some synonyms for "pestis" include epidemic, outbreak, contagion, pandemic, disease, infection, and illness. These terms all refer to widespread and often deadly afflictions that have plagued humanity throughout history. From the Black Death in the 14th century to the current COVID-19 pandemic, "pestis" and its synonyms evoke feelings of fear and helplessness. However, it is important to remember the tireless efforts of medical professionals and researchers who continue to fight against these diseases and to find a cure.