Back to explorer

entry

gas

/ɡæs/

Matter without fixed shape or volume

From Dutch, ultimately probably Ancient Greek gas (Void).

noun
verb
gas
Ancient Greek
Verified
khaos (χάος)
“Chasm, void, empty space”; the proposed conceptual ancestor

from Greek khaos "empty space" (see chaos ). The sound of Dutch "g" is roughly equivalent to that of Greek "kh." First...

Dutch
Verified
gas
A new scientific word coined from Greek khaos

from Dutch gas, probably

+1 more source
English
Verified
gas
First attested in 1648–1650s; adopted as the scientific term

from Dutch gas, probably

+1 more source
Modern English
gas

In the 1640s, Flemish chemist Jan Baptist van Helmont needed a name for a substance that seemed to be everywhere and nowhere at once. He reached for Greek khaos, “empty space” or “chasm,” and reshaped it into Dutch gas—a tiny spelling change with a huge scientific career ahead of it. Van Helmont even wrote, “This vapor, hitherto unknown, I call by a new name, gas,” in his posthumously published Ortus Medicinae. The route is not perfectly certain: the Dutch word may also have been nudged by geest, meaning “breath, vapor, or spirit,” while the occult writings associated with Paracelsus supplied the atmospheric mood. By 1779 gas had its modern scientific sense; later it expanded into coal gas, anesthetic gas, poison gas, intestinal gas, and finally slang for empty talk or something excellent. The word began as a name for a mysterious void—and ended up describing the invisible stuff filling nearly every room you enter.

§