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Nephritis

/nɪˈfraɪtɪs/noun

Inflammation of the kidneys.

The Greek roots

νεφρός
nephrós
kidney
+
-ῖτις
-îtis
inflammation of

Literally: kidney inflammation

The story of the word

The -itis that ends half of clinical medicine was not originally a noun ending at all. It was a feminine adjective agreeing with νόσος, disease, so νεφρῖτις meant 'the kidney disease' with the noun left unsaid. Doctors kept the adjective, dropped the noun, and gave the orphan a life of its own in appendicitis, arthritis and a thousand others.

How it travelled
Ancient Greek → Latin → English
First recorded
16th century

Same family

nephrologynephronarthritisbronchitis

In a sentence

Nephritis after a strep throat is rarer now than it was in her grandmother's day.

The biopsy confirmed nephritis rather than simple dehydration.

Built on the same root

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