Nucha
From Simon Online
Nucha arabice est spinalis medulla.
Apparatus:
medulla AC ef | medula B
Translation:
Nucha is Arabic for Latin spinalis medulla {"spinal cord"}.
Commentary:
Wehr (1976): ﻧﺧﺎﻉ /nuḫāʕ/ "spinal marrow, spinal cord; bone marrow, medulla; brain".