The state, rank, or condition of being an heir; the status or position of someone in line to inherit a title or property.
From 'heir' (Old French 'eir' from Latin 'heres' meaning inheritor) plus the suffix '-dom' (Old English 'dom' meaning judgment or domain), which creates nouns indicating states of being or domains of power.
Heirdom is unique because it's a status you're born into that you might lose through birth of a sibling, but can never fully escape—it's like a social contract written into your DNA.
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