Where does “exhaustīvus” come from?

exhaustīvus (Medieval Latin) comes from Latin exhaustus, from Latin exhaurio, from Latin hauriō, from Proto-Italic auzjō, from Proto-Indo-European h₂ews- — dawn; east; to draw water, scoop up.

Ancestry of “exhaustīvus”, step by step

StepLanguageWordMeaning
1Latinexhaustusdrawn out, exhausted, drained off, emptied,...
2LatinexhaurioI draw out, empty by drawing, exhaust, drain off,...
3Latinhauriōto draw (especially water), drain
4Proto-Italicauzjō
5Proto-Indo-Europeanh₂ews-dawn; east; to draw water, scoop up

Words derived from “exhaustīvus

Every word from Proto-Indo-European h₂ews-Every word from Proto-Italic auzjōEvery word from Latin hauriō
exhaustīvus — Etymology, Origin & Word History | Etymology Explorer