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Orthotic

/ɔːrˈθɒtɪk/noun

A device worn to support, align or correct the function of a limb or the spine.

The Greek roots

ὀρθός
orthós
straight, upright, correct

Literally: straightening device

Follow a root:ὀρθός9 words

The story of the word

Twentieth-century clinical coinage, built on ὀρθός and shaped to rhyme with prosthetic, the field it sits beside: a prosthesis replaces a limb, an orthosis corrects one. ὀρθός runs through English as a demand for straightness in every domain, teeth in orthodontics, spelling in orthography, doctrine in orthodox. The Greeks used it first for physical uprightness, a man standing straight, a wall true to the plumb line.

How it travelled
Ancient Greek → scientific coinage → English
First recorded
20th century

Same family

orthodoxorthographyorthodonticsorthopaedic

In a sentence

A custom orthotic in each shoe finally stopped the shin pain.

He runs in orthotics now and swears by them.

Built on the same root

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