Where does “acuité” come from?

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

Ancestry of “acuité”, step by step

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

Words derived from “acuité”

acuity
hyperacuity
visual acuity
stereoacuity

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