%interpolate%

v. t. [ imp. & p. p. Interpolated p. pr. & vb. n. Interpolating. ] [ L. interpolatus, p. p. of interpolare to form anew, to interpolate, fr. interpolus, interpolis, falsified, vamped up, polished up; inter between + polire to polish. See Polish, v. t. ] [ 1913 Webster ]

1. To renew; to carry on with intermission. [ Obs. ] [ 1913 Webster ]

Motion . . . partly continued and unintermitted, . . . partly interpolated and interrupted. Sir M. Hale. [ 1913 Webster ]

2. To alter or corrupt by the insertion of new or foreign matter; especially, to change, as a book or text, by the insertion of matter that is new, or foreign to the purpose of the author. [ 1913 Webster ]

How strangely Ignatius is mangled and interpolated, you may see by the vast difference of all copies and editions. Bp. Barlow. [ 1913 Webster ]

The Athenians were put in possession of Salamis by another law, which was cited by Solon, or, as some think, interpolated by him for that purpose. Pope. [ 1913 Webster ]

3. (Math.) To fill up intermediate terms of, as of a series, according to the law of the series; to introduce, as a number or quantity, in a partial series, according to the law of that part of the series; to estimate a value at a point intermediate between points of knwon value. Compare extrapolate. [ 1913 Webster +PJC ]