Delicate, intricate patterns of ice crystals formed on windows, surfaces, or in nature by frost; also decorative designs resembling these frost patterns.
Compound of 'frost' and 'work' (from Old English 'weorc'). Refers to both natural ice formations and artistic imitations of them.
Before central heating, Victorian people considered frostwork on windows a form of natural art—they'd sketch the patterns and use them as inspiration for jewelry and architectural details.
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