Necessarium

//ˌnɛsɪˈsɛəɹɪəm// noun

noun ·Uncommon ·Advanced level

Definitions

Noun
  1. 1
    Synonym of reredorter: a monastery's latrine, outhouse, or lavatory, typically located behind the dormitory.

    "The other outlet from the pisalis […] leads to the necessarium, in the corner of which a light […] is kept burning."

  2. 2
    Alternative form of necessarium. alt-of, alternative
  3. 3
    A lavatory. capitalized, humorous, sometimes

    "Viewers […] don't mind having a hundred variations, from ‘The Necessarium’ to ‘The Thunder-Box’ to choose from."

Example

More examples

"The other outlet from the pisalis […] leads to the necessarium, in the corner of which a light […] is kept burning."

Etymology

From Latin necessarium (“reredorter; outhouse”), from necesse (“unavoidable or necessary [thing]”) + -ārium (“-arium, -ium: forming locations”).

Related phrases

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.