Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • suffix Used to form the names of metal elements, after the style of early-named elements, as well as the isotopes of hydrogen.
  • suffix By extension, appended to common words to create scientific-sounding or humorous-sounding fictional substance names.
  • suffix Used to indicate the setting where a given activity is carried out: gymnasium, auditorium, stadium, colloquium, planetarium, podium, sanatorium. Words so formed often take "-a" for the plural.

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

New Latin -ium, neuter n. suff., from Greek -ion.

from Wiktionary, Creative Commons Attribution/Share-Alike License

From Latin -um ("neuter singular morphological suffix"), based on Latin terms for metals, such as ferrum.

Examples

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