E*quate" (?), v. t. [imp. & p. p. Equated; p. pr. & vb. n. Equating.] [L. aequatus, p. p. of aequare to make level or equal, fr. aequus level, equal. See Equal.]
To make equal; to reduce to an average; to make such an allowance or correction in as will reduce to a common standard of comparison; to reduce to mean time or motion; as, to equate payments; to equate lines of railroad for grades or curves; equated distances.
Palgrave gives both scrolle and scrowe and equates both to F[rench] rolle.
Skeat (Etymol. Dict. ).
Equating for grades Railroad Engin., adding to the measured distance one mile for each twenty feet of ascent. -- Equating for curves, adding half a mile for each 360 degrees of curvature.
© Webster 1913.