Where does “acutissimo” come from?

acutissimo (Italian) comes from Italian acuto, from Russian аку́т, from Spanish agudo, from Latin acūtus, from Latin acuō, from Latin acus, from Proto-Italic akus, from Proto-Indo-European h₂eḱus — sharp.

Ancestry of “acutissimo”, step by step

StepLanguageWordMeaning
1Italianacutoacute; sharp; high-pitched, high, shrill
2Russianаку́тacute accent
3Spanishagudosharp, pointed, acute; acute, sharp, witty, keen;...
4Latinacūtussharpened, made sharp, sharp, having been sharpened
5Latinacuōto make pointed, sharpen, whet
6Latinacusa needle, a pin; bodkin; bran, awn, chaff
7Proto-Italicakus
8Proto-Indo-Europeanh₂eḱus
9Proto-Indo-Europeanh₂eḱ-sharp
Every word from Proto-Indo-European h₂eḱ-Every word from Proto-Indo-European h₂eḱusEvery word from Proto-Italic akus
acutissimo — Etymology, Origin & Word History | Etymology Explorer