The office, rank, or territory of a duchess; alternatively, a place or institution ruled over by a duchess analogous to a 'dukedom.'
From 'duchess' combined with the suffix '-ery' (meaning place or domain where something happens), following the pattern of words like 'slavery' and 'pottery.'
Duchery is such a rare word that most people don't realize English offers gendered alternatives to male titles—showing how English creates parallel words but forgets to use them consistently!
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