contemporaneous

adj

Etymology: From Latin contemporāneus (“contemporary”), from con- (“with”) + tempus (“time”) + -aneus (“of or pertaining to”) (compare Late Latin temporāneus (“opportune, timely”)).

1. Existing or created in the same period of time.

   “Look in other contemporaneous works to see whether that idea was common then.”

   “Let AE and ae be two Lines indefinitely extended each way, along which two moving Things or Points may paſs from afar, and at the ſame time may reach the places A and a, B and b, C and c, D and d, &c. and let B be the Point, by its diſtance from which, the Motion of the moving thing or point in AE is eſtimated; so that — BA, BC, BD, BE, ſucceſſively, may be the flowing Quantities, when the moving thing is in the places A, C, D, E. Likewiſe let b be a like point in the other Line. Then will — BA and — ba be contemporaneous Fluents, as alſo BC and bc, BD and bd, BE and be, &c. […] [T]he contemporaneous parts AB and ab, BC and bc, CD and cd, DE and de are of the ſame length in both caſes. And thus in Equations in which theſe Quantities are repreſented, the contemporaneous parts of Quantities are not therefore changed, notwithſtanding their abſolute magnitude may be increaſed or diminiſhed by ſome given Quantity.”