Etymology Explorer › English

Where does “sanity” come from?

Sanity derives from English sane plus the Latin suffix -itas, ultimately from Proto-Indo-European -it-, forming an abstract noun denoting the quality of being mentally sound.

sanity (English): The condition of being sane; Reasonable and...

Definitions

  1. The condition of being sane; Reasonable and...

Ancestry of “sanity”, step by step

StepLanguageWordMeaning
1English-ityUsed to form a noun from an adjective;...
2Middle English-ite—
3Old French-ité-ity
4Latin-itās—
5Proto-Indo-European-teh₂tsUsed to form nouns representing state of being
6Proto-Indo-European-teh₂Used to form nouns representing state of being
7Proto-Indo-European-tósCreates verbal adjectives from verb stems
Every word from Proto-Indo-European -tós →