Focused
来自Big Physics
Safin(讨论 | 贡献)2022年4月27日 (三) 15:20的版本 (建立内容为“Category:etymology == google == [https://www.google.com.hk/search?q=focused+etymology&newwindow=1&hl=en ref] mid 17th century (as a term in geometry and phys…”的新页面)
mid 17th century (as a term in geometry and physics): from Latin, literally ‘domestic hearth’.