the world > matter > properties of materials > temperature > coldness > make cold [verb (transitive)] > cool > cool a boiling liquid (2)
spec. To cool (a hot or boiling liquid) by stirring, skimming, or pouring in something cold, in order to prevent it from boiling over; hence…
transitive. Chiefly English regional (northern). To cool (a vessel full of hot liquid) by taking out a ladleful and pouring it in again (see also…