As a prefix meaning "inverse"
How did the English prefix arc- come to mean "inverse" with respect to trigonometric functions, such as arctangent? Is this a definition that's not currently included on the page? ~MDD4696 22:25, 15 November 2007 (UTC)
Yet there is certainly effort and artistry to it: Zoella has the paced, artfully slowed down delivery of a Just a Minute contestant, arcing each sentence to allow no hesitation, no repetition.184.108.40.206 00:25, 25 February 2017 (UTC)