Having cold air flowing through in uncomfortable currents; a room or building with unwanted air gaps and breezes.
From Middle English 'draught' (a current of air), possibly from Old Norse 'draugr.' The suffix '-y' means 'characterized by' or 'having the quality of.'
Medieval castles were intentionally super drafty because they didn't have good ways to heat them anyway—but the drafts also helped prevent fires by blowing smoke out of stone rooms.
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