cam的词源

英文词源

cam (n.1)

"a projecting part of a rotating machinery," 1777, from Dutch cam "cog of a wheel," originally "comb;" cognate of English comb (n.). This might have combined with English camber "having a slight arch;" or the whole thing could be from camber.

cam (n.2)

abbreviation of camera, by 1990.

中文词源

cam：凸轮

可能来自PIE *kam , 转，弯，拱，进一步来自PIE*sker, 转，弯，词源同ring,curve.

该词的英语词源请访问趣词词源英文版：cam 词源，cam 含义。