Where does “acuāre” come from?

acuāre (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 “acuāre”, step by step

Step	Language	Word	Meaning
1	Latin	acuō	to make pointed, sharpen, whet
2	Latin	acus	a needle, a pin; bodkin; bran, awn, chaff
3	Proto-Italic	akus	—
4	Proto-Indo-European	h₂eḱus	—
5	Proto-Indo-European	h₂eḱ-	sharp

Words derived from “acuāre”

acuate
acuatus

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