Classes
来自Big Physics
Safin(讨论 | 贡献)2022年4月28日 (四) 11:11的版本 (建立内容为“Category:etymology == google == [https://www.google.com.hk/search?q=classes+etymology&newwindow=1&hl=en ref] mid 16th century (in class (sense 3 of the noun)…”的新页面)
mid 16th century (in class (sense 3 of the noun)): from Latin classis ‘a division of the Roman people, a grade, or a class of pupils’.