Definition from Wiktionary, the free dictionary
destemper (plural destempers)
- Obsolete form of distemper.
1719, Daniel Defoe, The Farther Adventures of Robinson Crusoe:
- The Sick Man visited, and furnish'd with Instructions, Meditations, and Prayers, suitable to his Condition, for putting him in Mind of his Change, for supporting him under his Destemper, and for preparing him for, and carrying him through his last Conflict with Death.