PS

*kursVˁ- - etlock joint, tarsus (SED I No. 150, Kogan 2011: 225)

Akkadian
kursinnu - fetlock, lower leg (CAD K 566, AHw. 511)
Syriac
karsūˁā - articulus (LSyr. 348)
probably related; Brockelmann asks whether it is from Arb.; but consider difference in the first syllable vocalism.
Mandaic
kursiat - (in k. anpia) nasal bone (MD 209)
marked as «doubtful»
Arabic
kursūˁ- - carpal end of the ulna, carpal bone, wrist bone (BK 2 885)