Where does “auspicious” come from?

Auspicious comes from Latin auspiciosus, formed from auspex (one who observes birds) and the suffix -iosus, ultimately derived from avis (bird).

auspicious (English): Of good omen; indicating future success;...

Definitions

  1. Of good omen; indicating future success;...

Ancestry of “auspicious”, step by step

StepLanguageWordMeaning
1EnglishauspicePatronage or protection; An omen or a sign;...
2Latinauspiciumdivination, augury; auspices; sign, indication
3Latinauspexan augur; an officiating priest
4Latinavi-spex
5Latinspeciōto observe, watch, look at
6Proto-Italicspekjōto observe, to see
7Proto-Indo-Europeanspéḱyetito be looking at, to keep looking at
8Proto-Indo-Europeanspeḱ-to see, to look, to observe

Words derived from “auspicious

Every word from Proto-Indo-European speḱ-
auspicious — Etymology, Origin & Word History | Etymology Explorer