PS

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

Akkadian
kirimmu - crooked arms (CAD K 406, AHw. 484)
Arabic
karmat- - upper part of the thigh where the socket turns (LA 12 608)
Amharic
kurma - elbow (AED 1384)
Amharic
täkʷärämmätä - to be flexed, folded up (limbs, fingers) (AED 1385)
Harari
kuruˀ - cubit, arm below the elbow (EDH 93)
probably related or there can be a connection with *kurāˁ- - knee and shin-bone; lower leg (of animal) (SED I No. 157, Kogan 2011: 225)
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.
Selti
kirmāyo - elbow (EDG 350)
Mehri
ˀākərmōt - pelvis (ML 18)
may be related
Jibbali
ˁakərũt - pelvis (JL 10)
may be related