Late Middle English (in an earlier sense). From post-classical Latin acuatus, past participle of acuareacuate.
acuate2
/ˈakjʊeɪt/
Now historical
verb
[with object]To make sharp, to sharpen.
Origin
Mid 16th century; earliest use found in Andrew Borde (c1490–1549), physician and author. From post-classical Latin acuat-, past participial stem of acuare to make pungent, to whet, sharpen from classical Latin acus needle; compare classical Latin acuere to sharpen.