Safin（讨论 | 贡献）2022年4月29日 (五) 08:08的版本 （建立内容为“Category:etymology == google == [https://www.google.com.hk/search?q=femur+etymology&newwindow=1&hl=en ref] late 15th century: from Latin femur, femor- ‘thi…”的新页面）
1560s, at first in English as an architectural term; 1799 as "thighbone;" from Latin femur "thigh, upper part of the thigh," which is of unknown origin.
