Skip to content
Medicine & BodyGreekEnglish

Phrenic

/ˈfrɛnɪk/adjective

Belonging to the diaphragm, especially the nerve that drives it.

The Greek roots

φρήν
phrḗn
diaphragm, midriff, mind

Literally: of the midriff

Follow a root:φρήν5 words

The story of the word

Greek φρήν meant the diaphragm and the midriff, and also the seat of thought: Homer's people make their decisions in their φρένες, not in their heads. Anatomy kept the first sense and psychiatry kept the second, so the phrenic nerve and schizophrenia descend from one word. Ancient physicians called delirium φρενῖτις, inflammation of the midriff, which is where frenzy comes from.

How it travelled
Ancient Greek → New Latin → English
First recorded
18th century

Same family

schizophreniafrenzyphrenologyfrantic

In a sentence

A knock to the phrenic nerve on one side leaves that half of the diaphragm sitting still.

Hiccups are a phrenic problem, not a stomach one.

Built on the same root

More from Medicine & Body