To free from thralldom or enslavement; to liberate or emancipate someone from bondage.
From Old English dis- (reverse) + thrall (slave or bondsman). Thrall comes from Old Norse þræll, and the prefix dis- negates the state of being enslaved.
Medieval English used this word in religious texts about spiritual liberation and in abolitionist writings—it carries moral weight because it means not just freedom, but freedom from active oppression.
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