Harari

kurumbāy - elbow (EDH 94)

Note ­-mb < *m in Har. Cf. discussion in [EDH 94] where the underlying form kurun+bāy is postulated with reservations to compare it to Amh. kərn ‘elbow’, Gog. kərrä (cf. *kʷirāˁ­ ‘knee and shin-bone; lower leg (of animal)’, No. 157); at the same time, a possibility of the Har. term «coming close» to Sel. kirmāyo is also admitted.

PS
*kVrm- - joint of limb bones; flexion, bend of limbs (SED I No. 149; Kogan 2011: 215)