acuate
/ˈakjʊət/
verb
historical
with object To make sharp, to sharpen.
Origin
Late Middle English - 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.
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Eric acuated his pencil. He may not have been the sharpest tack in the bulletin board, but tried to point himself in the right direction.