More ancient; older in time compared to something else.
From Middle English 'auncient' (from Old French 'ancient') plus the comparative suffix '-er', meaning 'having greater age or antiquity than another.'
This word shows how English speakers sometimes make comparative forms that don't follow modern rules—we now say 'more ancient' instead. Medieval writers used 'ancienter' freely, showing how language evolves to eliminate awkward sounds.
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