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Nitrate

/ˈnaɪtreɪt/noun

A salt or ester of nitric acid, used in fertiliser, explosives and food curing.

The Greek roots

νίτρον
nítron
natron, soda

Literally: salt of natron

Follow a root:νίτρον3 words

The story of the word

νίτρον was not saltpetre at all but natron, the sodium carbonate dug from Egyptian lake beds and used to dry out mummies; the Greeks borrowed the word along with the mineral from Egyptian. Medieval Latin quietly moved the name onto potassium nitrate, and the modern chemical sense follows that shift rather than the original. The old meaning survives in the symbol Na for sodium, from natrium, and in the name of Wadi Natrun.

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

Same family

nitrogennitrenatronnitroglycerine

In a sentence

Nitrate runoff from the fields is what turned the lake green by August.

Built on the same root

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