acuitionWiktionary 原文构词拆分acuity词根/词干+-ion后缀(no longer productive) An action or process, or the result of an action or process. · (no longer productive) A state or condition.演变路径（由近及远）英语借自 ←中世纪拉丁语 acuitio “whetting, sharpening”词源说明From Medieval Latin acuitio (“whetting, sharpening”), from acuo (“sharpen”). By surface analysis, acuity + -ion.释义（英文）名词 Noun(obsolete) Synonym of acuation (“act of sharpening”). [15th–20th c.]词族相关词（1）acuity