The story
- Medieval Latin · borrowed fromacuitio“whetting, sharpening”
- English todayacuition
From Medieval Latin acuitio (“whetting, sharpening”), from acuo (“sharpen”). By surface analysis, acuity + -ion.
First known use, by meaning
- 15th–20th c. Synonym of acuation (“act of sharpening”).
Etymology from Wiktionary, CC BY-SA 4.0.