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Dysarthria

/dɪsˈɑrθriə/noun

Slurred or laboured speech caused by weakness or poor coordination of the muscles that produce it.

The Greek roots

δυσ-
dys-
bad, difficult
+
ἄρθρον
árthron
joint

Literally: badly jointed speech

The story of the word

ἄρθρον is a joint, and the verb built on it meant to fit parts together, hence to utter sounds in distinct pieces. Articulate speech is jointed speech, and dysarthria is what happens when the joints stop working. It sits apart from aphasia, where the muscles are fine and the language itself is damaged; the same ἄρθρον gives arthritis and, in grammar, the article.

How it travelled
Ancient Greek → scientific coinage → English
First recorded
19th century

Same family

arthritisarthropoddyslexiadyspepsia

In a sentence

The dysarthria was the first sign anyone noticed, months before the diagnosis.

Speech therapy slowed the dysarthria without stopping it.

Built on the same root

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