Where does “fastuously” come from?

fastuously (English) comes from English fastuous, from Latin fastuosus, from Latin fastus, from Latin fas, from Proto-Indo-European bʰeh₂os, from Proto-Indo-European bʰeh₂-, from Proto-Indo-European bʰeh₂-s-ri-.

fastuously (English): In a fastuous manner

Definitions

  1. In a fastuous manner

Ancestry of “fastuously”, step by step

fastuously traces back through two separate lines of ancestry.

via English fastuous

StepLanguageWordMeaning
1Englishfastuousproud; haughty; disdainful
2Latinfastuosus
3Latinfastusallowed; A day on which courts sat; court...
4Latinfasdictates of religion, divine law (opp. iūs, human law), or an obligation thereunder
5Proto-Indo-Europeanbʰeh₂osutterance, saying
6Proto-Indo-Europeanbʰeh₂-to shine, glow light; to speak, say
7Proto-Indo-Europeanbʰeh₂-s-ri-

via English ly

StepLanguageWordMeaning
1EnglishlyAbbreviation of light-year
2VietnameselyAlternative spelling of li
Every word from Proto-Indo-European bʰeh₂-s-ri-