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#TIL On the etymology/origin of the word ‘titration’.
The word "titration" descends from the French word tiltre (1543), meaning the proportion of gold or silver in coins or in works of gold or silver; i.e., a measure of fineness or purity. Tiltre became titre,[4] which thus came to mean the "fineness of alloyed gold",[5] and then the "concentration of a substance in a given sample".[6] In 1828, the French chemist Gay-Lussac first used titre as a verb (titrer), meaning "to determine the concentration of a substance in a given sample".[7]
