Primaries
来自Big Physics
Safin(讨论 | 贡献)2022年4月29日 (五) 04:59的版本 (建立内容为“Category:etymology == google == [https://www.google.com.hk/search?q=primaries+etymology&newwindow=1&hl=en ref] late Middle English (in the sense ‘original,…”的新页面)
late Middle English (in the sense ‘original, not derivative’): from Latin primarius, from primus ‘first’. The noun uses date from the 18th century.