Equate

[Sarah]

To make equal; to reduce to an average; to make such anallowance or correction in as will reduce to a common standard ofcomparison; 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 measureddistance one mile for each twenty feet of ascent.-- Equating for curves, adding half a mile for each 360 degrees ofcurvature.

[Marquetta]

Consider (one thing) to be the same as or equivalent to another.