supplemental

[ suhp-luh-men-tl ]

/ ˌsʌp ləˈmɛn tl /

supplementary.

(of a pleading, an affidavit, etc.) added to furnish what is lacking or missing.

anything that is supplemental: supplementals attached to the bill in committee.

Origin of supplemental

First recorded in 1595–1605; supplement + -al¹

sup·ple·men·tal·ly, adverb non·sup·ple·men·tal, adjective non·sup·ple·men·tal·ly, adverb pre·sup·ple·men·tal, adjective

un·sup·ple·men·tal, adjective

And keeping the wait times down may have been a lucrative source of supplemental income for VA employees involved.

Did the VA Pay Out Bonuses for Screwing Veterans? |Jacob Siegel |May 12, 2014 |DAILY BEAST
Half of the 47 million on SNAP (Supplemental Nutrition Assistance Program) are children.

The Dude Is Up for Breakfast: Jeff Bridges’ New Push on Childhood Hunger |Eleanor Clift |March 15, 2014 |DAILY BEAST
McCauley revealed that episode in a “supplemental” report, dated nearly a month after the grand-jury verdict.

The Strange and Mysterious Death of Mrs. Jerry Lee Lewis |Richard Ben Cramer |January 11, 2014 |DAILY BEAST
The old unreformed Congress had enacted the Supplemental Security Income program in 1971.

Memo: The Aaron Sorkin Model of Political Discourse Doesn't Actually Work |Megan McArdle |April 23, 2013 |DAILY BEAST

A Republican leadership aide, asked if there was any discussion of a supplemental funding bill, said simply: “Not yet.”

Will Republicans Oppose Disaster-Relief Funds After Hurricane Sandy? |Eleanor Clift |October 31, 2012 |DAILY BEAST
In the subsequent reign of his son, the great charters were confirmed with some supplemental acts.

Abridgment of the Debates of Congress, from 1789 to 1856, Vol. I (of 16) |Thomas Hart Benton
I presume this is an omission by mere oversight, and I recommend that it be supplied by an amendatory or Supplemental Act.

The Great Conspiracy, Part 4 |John Alexander Logan
The Bellver was making one of these supplemental journeys, and her arrival was not looked for at Palma.

The Grey Lady |Henry Seton Merriman
All of this supplemental study has proved most helpful to me in my present work.

Tuskegee & Its People: Their Ideals and Achievements |Various
The writer has prepared a series of text-books to be used as a supplemental course of study in the Sunday school.

Seven Graded Sunday Schools |Various