complement
noun
something that completes or makes perfect.
Used to describe an ongoing action or continuous state that was happening at a specific time in the past.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Giolito, who was called up from Class AAA Syracuse earlier Sunday, was complementing his fastball with change-ups and curveballs successfully, and batters were not fouling off his best pitches.
From Washington Post ● Aug. 28, 2016