Where does “mendacity” come from?

Mendacity derives from Late Latin mendacitas, formed from the Latin suffix -itas, ultimately from Proto-Indo-European -it-.

mendacity (English): The fact or condition of being untruthful;...

Definitions

  1. The fact or condition of being untruthful;...

Ancestry of “mendacity”, step by step

StepLanguageWordMeaning
1Late Latinmendacitasfalsehood
2Latinmendaxdeceitful, lying, deceptive, untruthful, false,...
3Latin-āxish, -y
4Latin-iumSuffix used to form abstract nouns, sometimes...
5Latin-iusforming adjectives from nouns; nominative neuter...
6Proto-Italic-jōsForms comparative adjectives
7Proto-Indo-European-yósCreates adjectives from noun or verb stems
Every word from Proto-Indo-European -yósEvery word from Latin -iumEvery word from Latin -ius
mendacity — Etymology, Origin & Word History | Etymology Explorer