Where does “unfastidiousness” come from?

unfastidiousness (English) comes from English unfastidious, from English fastidious, from Latin fastīdiōsus, from Latin fastīdium, from Latin fastus, from Latin fas, from Proto-Indo-European bʰeh₂os, from Proto-Indo-European bʰeh₂-.

unfastidiousness (English): The quality of being unfastidious

Definitions

  1. The quality of being unfastidious

Ancestry of “unfastidiousness”, step by step

unfastidiousness traces back through two separate lines of ancestry.

via English unfastidious

StepLanguageWordMeaning
1EnglishunfastidiousNot fastidious
2EnglishfastidiousExcessively particular, demanding, or fussy about...
3Latinfastīdiōsussqueamish
4Latinfastīdiumloathing, disgust, disdain
5Latinfastusallowed; A day on which courts sat; court...
6Latinfasdictates of religion, divine law (opp. iūs, human law), or an obligation thereunder
7Proto-Indo-Europeanbʰeh₂osutterance, saying
8Proto-Indo-Europeanbʰeh₂-to shine, glow light; to speak, say
9Proto-Indo-Europeanbʰeh₂-s-ri-

via English Ness

StepLanguageWordMeaning
1EnglishNessAn Ulster princess and the mother of Conchobar mac Nessa and Findchoem in the Ulster Cycle of Irish mythology. Daughter of Eochaid Sálbuide. Also the mother of Cormac Cond Longas by incest with Conchobar mac Nessa
2Middle Englishnesse
3Old Englishnæsnot, not at all; not; first/third-person singular...
4Proto-Germanicnasjąfoothill; headland; cape
5Proto-Indo-Europeannéh₂snose
Every word from Proto-Indo-European bʰeh₂-s-ri-Every word from Proto-Indo-European bʰeh₂-Every word from Proto-Indo-European bʰeh₂os