Where does “acuitas” come from?

acuitas (Medieval Latin) comes from Latin acuō, from Latin acus, from Proto-Italic akus, from Proto-Indo-European h₂eḱus, from Proto-Indo-European h₂eḱ- — sharp.

Ancestry of “acuitas”, step by step

StepLanguageWordMeaning
1Latinacuōto make pointed, sharpen, whet
2Latinacusa needle, a pin; bodkin; bran, awn, chaff
3Proto-Italicakus—
4Proto-Indo-Europeanh₂eḱus—
5Proto-Indo-Europeanh₂eḱ-sharp

Words derived from “acuitas”

Every word from Proto-Indo-European h₂eḱ- →Every word from Proto-Indo-European h₂eḱus →Every word from Proto-Italic akus →