Where does “mendaciousness” come from?

mendaciousness (English) comes from English mendacious, from Middle French mendacieux, from Latin mendācium, from Latin mendax, from Latin -āx, from Latin -ium, from Latin -ius, from Proto-Italic -jōs — Creates adjectives from noun or verb stems.

mendaciousness (English): Mendacity

Definitions

  1. Mendacity

Ancestry of “mendaciousness”, step by step

StepLanguageWordMeaning
1EnglishmendaciousLying, untruthful or dishonest; False or untrue
2Middle Frenchmendacieuxfalse, especially in a way intending to deceive
3LatinmendāciumA lie, untruth, falsehood, fiction
4Latinmendaxdeceitful, lying, deceptive, untruthful, false,...
5Latin-āxish, -y
6Latin-iumSuffix used to form abstract nouns, sometimes...
7Latin-iusforming adjectives from nouns; nominative neuter...
8Proto-Italic-jōsForms comparative adjectives
9Proto-Indo-European-yósCreates adjectives from noun or verb stems
Every word from Proto-Indo-European -yósEvery word from Latin -iumEvery word from Latin -ius