pneumonia

noun

Etymology: From Ancient Greek πνευμονία (pneumonía, “lung disease”), from πνεύμων (pneúmōn, “lung”) + -ία (-ía).

1. Inflammation of the lungs caused by viruses, bacteria or other infectious microorganisms.

   “He had always been remarkably immune from such little ailments, and had only once in his life been ill, of a vicious pneumonia long ago at school.”