argon
UK[ˈɑːɡɒn]US[ˈɑːrɡɑːn]
n
A chemical element that is a noble gas, does not react with other elements, and is used in electric lights.
Etymology
The word 'argon' was coined in 1894 by the British scientists Lord Rayleigh and Sir William Ramsay. They derived it from the Greek neuter adjective 'argos', meaning 'idle' or 'inactive', from the prefix 'a-' (meaning 'not') and 'ergon' (meaning 'work'). This name was chosen to reflect the element's most defining chemical property: its inertness and refusal to react or 'work' with other elements. The term thus represents a direct and logical naming based on observed scientific behavior, transitioning from a Greek descriptive phrase into a fixed, atomic-age noun.
Analysis
The word 'argon' is a simplex loanword from Greek. It is not productively segmented into smaller, meaningful morphemes in modern English.
Examples
Argon is the third most abundant gas in the Earth's atmosphere.
The light bulbs were filled with argon to prolong the filament's life.
In welding, an argon shield protects the molten metal from reacting with oxygen.