(UN-2 8 + MORTISE. v.1)
1748. Richardson, Clarissa (1811), VI. 304. An old broken-bottomed cane couch, unmortised by the failing of one of its worm-eaten legs.
1859. Tennyson, Merlin & V., 402. The wrist is parted from the hand that waved, The feet unmortised from their ankle-bones Who paced it, ages back.