overcool

verb

over·​cool ˌō-vər-ˈkül 

overcooled; overcooling

transitive + intransitive

: to cool excessively : to lose or to cause (something or someone) to lose too much heat or warmth

… has a dehumidifying cycle that's supposed to dry out a humid room without overcooling it.

—Consumer Reports

Conventional greenhouse additions overheat, overcool and tend to frost up when it's cold and windy.

—The Globe and Mail (Canada)

Word History

First Known Use

1590, in the meaning defined above