mercury
UK[ˈmɜː.kjə.ri]US[ˈmɜːr.kjə.ri]
n
A heavy, silver-white metallic chemical element, liquid at room temperature.
n
The planet closest to the sun in our solar system.
n
(Mercury) The Roman messenger god, often depicted with winged sandals.
Etymology
The word 'mercury' originates from Latin 'Mercurius', the name of the Roman god of trade, messengers, and travel, known for his speed. The planet was named after this deity due to its swift movement across the sky. The chemical element, known for its fluid, quick-silver appearance, was later named for the same planet, following the alchemical tradition of naming metals after celestial bodies. Thus, the core semantic thread from the ancient god to the modern scientific terms is one of rapid motion and fluidity.
Analysis
This is a simplex word, a proper name borrowed directly from Latin. It is not productively formed from smaller, meaningful English morphemes.
Examples
The old thermometer contained a column of mercury.
Mercury is the smallest and fastest-orbiting planet in our solar system.
In Roman mythology, Mercury was the messenger of the gods.