Built with or faced with ashlar stone; constructed using squared stone blocks.
Past participle of 'ashlar' used as a verb, meaning 'to face or build with ashlar.' The '-ed' past participle suffix creates the adjective.
When you see a 'ashlared' castle wall, you're looking at medieval craftsmanship at its finest—each stone was individually shaped and fitted, a process that cost enormous amounts of time and money.
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