Where does “nerissimo” come from?

nerissimo (Italian) comes from Italian nero, from Italian -astro, from Latin -astrum, from Latin -aster — pater + API → patraster.

Ancestry of “nerissimo”, step by step

StepLanguageWordMeaning
1Italianneroblack; black colour; fascist, the extreme right
2Italian-astroused to form pejoratives; -aster, -ster
3Latin-astrum—
4Latin-asterpater + API → patraster
Every word from Latin -aster →Every word from Italian -astro →Every word from Latin -astrum →