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Pneumonia

/nuːˈmoʊnjə/noun

Inflammation of the lungs, usually from infection, filling the air sacs with fluid.

The Greek roots

πνεύμων
pneúmōn
lung

Literally: lung condition

Follow a root:πνεύμων1 word

The story of the word

The older Greek word for lung was πλεύμων, and it shifted to πνεύμων under the pull of πνεῦμα, breath. That single letter is why English opens the word with a p nobody pronounces. Latin had already taken pulmo from the older form, so pulmonary and pneumonia name the same organ twice over. William Osler called the disease the captain of the men of death, and until antibiotics it generally was.

How it travelled
Ancient Greek → Latin → English
First recorded
17th century

Same family

pneumaticpneumothoraxdyspnea

In a sentence

She went in with a cracked rib and came home with pneumonia.

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