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Oxygen

The element essential to respiration, symbol O.

The Greek roots

ὀξύς
oxýs
sharp, acid
+
γενής
-genḗs
forming

Literally: acid-former

The story of the word

Mistakenly thought to be the essential ingredient of all acids, it was dubbed the 'acid-former'.

The same roots elsewhere

Other languages reached for exactly the same Greek pieces.

In a sentence

Every breath draws oxygen deep into the lungs.

Built on the same root

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