The state or condition of being unused or no longer in use; abandonment of a practice or custom.
From dis- (prefix meaning 'not') + -usance (from usage, derived from Latin usus, 'use'). The -ance suffix creates a noun expressing a state or condition, similar to 'governance' or 'allowance'.
Disusance is an archaic word that linguists love because it shows how English once had multiple words for 'not using something anymore'—we've mostly settled on 'disuse' instead, showing how language naturally prunes its vocabulary.
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