Comparative form of 'cosy/cozy'; more warm, comfortable, and intimate than something else.
Comparative adjective formed from 'cosy/cozy' by adding '-er,' following standard English comparative formation patterns.
The evolution from 'cosy' to 'cosier' to 'cosiest' shows how English speakers instinctively compare comfort levels—we all know exactly what 'cosier' feels like because it's part of our sensory vocabulary.
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