Biceps
来自Big Physics
Safin（讨论 | 贡献）2022年4月27日 (三) 19:26的版本 （建立内容为“Category:etymology == google == [https://www.google.com.hk/search?q=biceps+etymology&newwindow=1&hl=en ref] mid 17th century: from Latin, literally ‘two-he…”的新页面）
mid 17th century: from Latin, literally ‘two-headed’, from bi- ‘two’ + -ceps (from caput ‘head’).
wiktionary
From Latin biceps(“double-headed, two peaked”), from bis(“double”) + caput(“head”).
etymonline
biceps
1630s (adj.) "two-headed," specifically in anatomy, "having two distinct origins," from Latin biceps "having two parts," literally "two-headed," from bis "double" (see bis-) + -ceps, combining form of caput "head" (from PIE root *kaput- "head"). As a noun meaning "biceps muscle of the arm," from 1640s, so called for its structure. Despite the -s, it is singular, and classicists insist there is no such word as bicep.
