Noun: sanity
| Singular | sanity |
| Plural | sanities |
Sample Sentences
-
preserve one's sanity
-
lose your sanity
-
decree someone's sanity
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The template is [Richard] Nixon’s “madman theory” of diplomatic engagement – shorthand for prompting your adversaries to doubt your sanity and mental instability to the point where they are intimidated into otherwise unlikely concessions. [2026 April 8, Robert Tait, “Trump may be using Nixon’s ‘madman theory’ – and similar infamy may await”, in The Guardian, →ISSN, archived from the original on 08 Apr 2026:]
Nouns inflected like sanity
clitoridectomy,
royal jelly,
whoopsy,
surrogacy,
urinary,
rastrography,
renoscopy,
sourtop blueberry,
forcible entry,
superficiary,
lipidosity,
potability,
phonography,
hyperproperty,
greenery,
conjugality,
ring singularity,
Brittany,
ignobility,
obscurity, etc. (List truncated at 20 nouns)
Etymology
From Middle English sanite, sanyte, sanytee, from Middle French sanité, from Latin sānitās, from sānus (“healthy”) + -itās (“-ity”). By surface analysis, sane + -ity. See: Middle English Nouns '
sanite', Latin Nouns '
sānitās'.