attemper

transitive verb

at·tem·per | \ əˈtempə(r), aˈ-\

-ed/-ing/-s

Definition of attemper

1 obsolete : regulate, control, order

2 archaic

a : soften, mitigate

b : soothe, appease

3a archaic : to reduce, modify, or moderate by mixture

b : to modify the temperature of : make (as air) warmer or colder

4 archaic : to make suitable : accommodate, adapt

5 archaic : to bring into harmony : attune

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