interpolate

To insert or introduce between other elements or parts.

To insert (material) into a text.

To insert into a conversation. synonym: introduce.

To change or falsify (a text) by introducing new or incorrect material.

To estimate a value of (a function or series) between two known values.

To create a continuous function that incorporates (a finite set of data), such as creating a curve that passes through a fixed set of points or a surface through a fixed set of curves.

To introduce estimated values of (pixel data) into a pixel array to improve the quality of an enlarged digital image.

To make insertions or additions.