The quality or state of being old or aged; the condition of having advanced in years.
From 'aged' (adjective) plus the suffix '-ness' (from Old English 'nyss'), which converts adjectives into abstract nouns. The structure follows standard English nominalization patterns dating back to Old English.
While 'age' and 'agedness' both refer to getting older, 'agedness' emphasizes the actual *state* or *quality* of being old—it's the poetic way to talk about what age feels like rather than just counting years.
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