To make cozy or comfortable; an informal or dialectal verb meaning to create a cozy atmosphere or cuddle up.
From cozy (from Dutch 'koosje' or Scottish 'coosie') plus the verb-forming suffix -ify (meaning 'to make' or 'to cause to become'). The suffix -ify converts adjectives into verbs of transformation.
English speakers rarely say 'coosify,' but the word exists in the language's potential—and when you encounter it, you instantly understand it. This reveals how suffix systems let us generate meaning even for words we've never heard.
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