Answer: interpolated

AnswerCrossword Clue
interpolatedInsert (words) in a book or other text, esp. in order to give a false impression as to its date
interpolatedINTERPOLATE, to insert a word or passage in a book or manuscript, esp in order to mislead
interpolatedMake such insertions in (a book or text)
interpolatedInsert (an intermediate value or term) into a series by estimating or calculating it from surrounding known values
interpolatedInsert (something) between fixed points
interpolatedInterject (a remark) in a conversation