Archaic second-person singular or poetic past tense of 'address,' meaning you addressed or spoke to.
From Middle English 'addressest' or 'addresst,' archaic verb conjugation forms used in Early Modern English, especially in religious or formal poetry.
In Shakespeare or King James Bible language, 'addrest' appears in phrases like 'thou addrest thyself'—it's a reminder that verbs had tons of different endings for different people and situations, making old English sound almost like a different language.
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