in|ter´po|lat´er

in|ter|po|late «ihn TUR puh layt», verb, -lat|ed, -lat|ing.

–v.t.

1. to alter (a book, passage, music, or other written material) by putting in new words or groups of words, especially without authorization or deceptively: »

So many writers had interpolated the old manuscript that it was hard to tell what parts were genuine.

2. to put in (new words, passages, music, or other written material).

3. Mathematics. to find or insert (an unknown term) between two known terms in a series.

4. to insert or introduce (something additional or different) between other things, or in a series; interpose. SYNONYM(S): intercalate, interject.

–v.i.

to make insertions or interpolations.

╂[< Latin interpolāre (with English -ate¹) freshen up, alter < inter- (intensive) + polīre to smoothe, polish]

–in|ter´po|lat´er, noun.

–in|ter´po|la´tion, noun.