Past tense of 'attorn,' meaning having formally transferred one's loyalty and tenancy to a new lord or property owner.
The regular past tense formation of 'attorn' by adding the '-ed' suffix, following standard English verb conjugation patterns established in Middle English.
In property transfer documents from the 1600s-1800s, you'll see phrases like 'the tenant attorned to the new lord'—it's a legal word frozen in time, still used in real estate law but almost never in spoken English anymore.
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