Definition of "refrigerate"

[T]he other [artery] goes to the lungs, to fetch air to refrigerate the heart.

1621, Democritus Junior [pseudonym; Robert Burton], The Anatomy of Melancholy, […], Oxford, Oxfordshire: Printed by John Lichfield and Iames Short, for Henry Cripps

They vvould go over board vvith a Rope faſtned about them, that by drenching themſelves a vvhile in the Sea, they might eaſe the internal Heat vvhich parched them; and vvhen they ſtood any of them to ſteer the Veſſel, they vvould have their Feet in a Pail of Sea VVater to refrigerate 'em.

1702, Cotton Mather, “[Book VI (Thaumaturgus: […]).] Chapter I. Christus Super Aquas: Relating Wonderful Sea Deliverances.”, in Magnalia Christi Americana: Or, the Ecclesiastical History of New-England, from Its First Planting in the Year 1620. unto the Year of Our Lord, 1698. […], London: […] Thomas Parkhurst, […], section VI (Sore Calamities at Sea Survived), page 5, column 2

Persons born in winter are, so to say, of a cold and frosty disposition and can thereby exert a refrigerating influence on the temperature of the air.

1900, James George Frazer, The Golden Bough, volume 2, page 104