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 ]

2. (Math.) (a) Provided with necessary interpolations; as, an interpolated table. (b) Introduced or determined by interpolation; as, interpolated quantities or numbers. [ 1913 Webster ]

2. That which is introduced or inserted, especially something foreign or spurious. [ 1913 Webster ]

Bentley wrote a letter . . . . upon the scriptural glosses in our present copies of Hesychius, which he considered interpolations from a later hand. De Quincey. [ 1913 Webster ]

3. (Math.) The method or operation of finding from a few given terms of a series, as of numbers or observations, other intermediate terms in conformity with the law of the series. [ 1913 Webster ]