Where does “mercurial” come from?

Mercurial comes from Middle English mercurial, derived from Latin mercurialis, relating to Mercury or commerce.

mercurial (English): Any of the plants known as mercury, especially...

Definitions

  1. Any of the plants known as mercury, especially...

Ancestry of “mercurial”, step by step

mercurial traces back through two separate lines of ancestry.

via Middle English mercurial

StepLanguageWordMeaning
1Middle EnglishmercurialA plant belonging to the genus "Chenopodium"; a...
2LatinMercurialispertaining to the Roman god Mercury
3LatinMercuriusMercury; a Roman god associated with speed and...
4Latinmerxmerchandise, commodity; goods, wares
5Proto-Italic*merks—

via Middle English mercuryal

StepLanguageWordMeaning
1Middle Englishmercuryala plant, probably the goosefoot ; dog's mercury
2Old Frenchmercurial—
Every word from Proto-Italic *merks →Every word from Latin merx →Every word from Latin Mercurius →