Where does “sanguinario” come from?
sanguinario (Italian) comes from Latin sanguinarius, from Latin sanguīs, from Proto-Italic *sangwens, from Proto-Indo-European h₁sh₂-én-, from Proto-Indo-European h₁ésh₂r̥ — blood.
sanguinario (Italian): bloodthirsty
Ancestry of “sanguinario”, step by step